King

is a member of the Seven Deadly Sins and is the Sin of Sloth with the symbol of the Grizzly. He is the master of the Black Hound, Oslo. King's real name is Harlequin, and as the name suggests, he was the king of the fairies and protector of the Fairy King's Forest.

Appearance
King's appearance resembles a young boy with short orange colored hair, a high forehead, thin eyebrows, and orange eyes. He wears an orange and green sweatshirt with brown sleeves, mid-length pants, and buttoned shoes. He also carries a leopard pattern pillow.

In his chubby human form, he looks almost exactly like his wanted poster and wears an enlarged version of the same clothes which he wears in his true form. On one occasion, he wears a flamboyant royal attire when greeting Elizabeth in a "respectable way."

10 years ago, he wore full body light green armor with a helmet that fits the size of his transformation. King's wanted poster depicts him as a big man with short hair, sideburns, a button nose, and a sneer. His Seven Deadly Sins Grizzly symbol is located just above his left ankle and on the outer side of his lower leg.

Personality
When he first appeared, he is shown to be an ally to the Holy Knights and appears to be willing to wipe anyone out if they got in his way - along with the person he is after. Since he is the Sin of Sloth he is somewhat lazy, as shown through his feet not touching the ground, preferring to levitate. In the past, he was shown to be a kind and tender person who returned stuffed animals stolen from children by Ban. Furthermore, it appears that he is a fairly emotional person who cries easily.King has trouble admitting his affection for Diane. Although he actually enjoys being together with Meliodas and Diane, he could not bring himself to reveal it. He also deeply cares for his sister, Elaine, as shown when he is willing to take revenge for her death by "killing" Ban.

King is still shown to have a caring side, shown when he decided to help the Seven Deadly Sins in their battle against the Holy knights, albeit, he claimed it was merely for Diane. Despite being the Sin of Sloth, he is also shown to be hard working and serious at times. When King joined up with the group, he started to act like the only sane man of the group and questioned his teammates' erratic and slightly insane actions, such as their nonchalance at losing their sacred treasures. Furthermore, when King is forced to do something he dislikes, he can easily be motivated if it will make Diane happy.Despite King's kind personality, he is not above killing someone if pushed. King was willing to kill Guila and Jericho if they continued to attack him, but did not since Helbram saved them both.

King tends to be very shy around Diane as he becomes bashful when he first met her after ten years and quickly ran away. King usually ends up having a nose bleed whenever Diane does or says something perverted. Elaine points out that King becomes much more powerful and serious when his loved ones are hurt.

History
700 years ago, King was the ruler of his country and his spear Chastiefol was made in the fairy realm next to his country. King used to live with Elaine along with other Fairies. During his time protecting the forest, King and Helbram were best friends, but unlike Helbram, King found no interests in humans and cautioned Helbram not to trust them. However, Helbram and his group went out of the forest to see the human world where they met a group of human travelers who give them items for money, until it was revealed that the humans trapped them and removed their wings in order to form medicine and money. King went out of the forest to save his friends as Elaine tried to stop him, but told her to stay and protect the forest. As King found the dead bodies of the Fairies, King met with a tall, armored human wearing an eye patch who attacked him from the back, ending up nearly killing him, until he was saved by a young Diane. King ended up forgetting about his life as a Fairy King and spend his time playing with and protecting Diane.

Diane later met an old man who offered Diane and King some food despite being Fairy and a Giant. King was uneasy with the old man, and told Diane to be careful around humans. Diane ended up getting a fever, which sent King into panic due to Fairies never having fevers and went out to get herbs to help her recover. But, Diane stopped him, telling him to not leave her side since she was always alone. The old man who gave them food found them, and gave some herbs to Diane to feel better. As soon as Diane got better, King and Diane end up playing tag with each other, as King told her that if she caught him, he will grant her a wish. Diane took it seriously and caught King, but end up getting her clothes ripped, leaving her naked much to King dismay. King end up making her new clothes and went to the old man's place, only to find more towns built there, and that the old man had a grandchild now. After leaving the forest, King told Diane about marriage between two humans who love each other.

Diane asks if King loves her, he then blushes, but admits that he does. Diane asks King if he would always love her and stay by her side which made the Him blush harder, but he agreed. Later that night, King ended up remembering who he is, and found out that the village close by is on fire. King told Diane to sit back as he went to find out that everyone died with their back slash. King found the man who killed the, which was the human he met a hundred year before. King was shocked to see the human still alive, as was the human shocked to find him alive. But, King put it together and realize it was Helbram who transform into a human and had been killing tons of humans for the past hundred years due to the cruel nature they offer them. King killed Helbram with a sharp flower in order to stop him like they promise which end up getting King to tear up. King went to Diane to erase her memories of him with a flower, since fearing that he is unable to protect anyone any more. King was then captured by unknown Holy Knights for the crime of "Sloth" as he was a king, and was unaware of Helbram cruel nature, and turning a blind eye. However, unknown to King, Meliodas was with the Holy Knights, but did not see him. King's sin eventually led him to become a member of the Seven Deadly Sins when King Liones formed the group. Despite being a former king and the oldest of the group, King is not assigned the role of the leader.

A long time ago, Ban went through a phase of collecting stuffed animals. Actually, he went round stealing every stuffed animal in the kingdom, thinking that he wouldn't be cursed if he did such a small deed as he worked hard as a knight. Immediately, King grew angry at Ban, complaining the little children throughout town are crying. Whilst Ban finally grew satisfied and fell asleep, King silently returned all of the stuffed toys to the children. Since then, King followed Ban wherever he goes to prevent from causing trouble, giving other people an impression that they're the unlikely "dynamic" duo.

In an unspecified point of time, King and his teammates participated in a mission to wipe out a group of vampires at the castle of Edinburg where a drunken Ban deliberately used Snatch to steal all of King's and Diane's strength which gave them a really hard time in battle. King did not know about the cause of his incident until 10 years later when Gowther revealed it. Some time later, after the training, King accompanied Ban on a bar where he angrily glared at the immortal who pass out drinking while Meliodas converse with Hendriksen and Dreyfus. At some point of time, King and his fellow Sins met up with King Liones who was with young Elizabeth. King did not recognize her until Gowther revealed it ten years later.

At the day of the betrayal, King and the rest of his teammates were summoned by Great Holy Knight Zaratras to meet with him at the castle some time after the Seven Deadly Sins defeated the troll queen and, at the same time, destroyed the Great Druid Altar. While walking with his team, King reminded his captain Meliodas that he is always drinking when the latter mentioned that they should have attended the National Foundation Festival. When they discovered a horribly stabbed body of Zaratras, King was shocked and noticed that the entire order of Lione's Holy Knights begin to attack them. King obeyed Meliodas' last order to disperse and hide until they regroup.

10 years ago after the incident, King went back to his hometown to see his old family and friends. But he discovered that a bandit had stolen the hidden treasure, Fountain of Youth, and had killed the Guardian Saint who was his sister. King later found out that Ban had killed his sister and wanted revenge on him and joined the Holy Knights to do so.

Forest of White Dreams arc
King is first mentioned when Gilthunder claims that he perished in the capital of the dead. In the middle of Meliodas and Gilthunder's fight, King's death is told to Diane and Elizabeth.

Baste Dungeon arc
After Meliodas, Elizabeth, Diane, and Ban escaped the Baste Dungeon, a young boy was seen with the Symbol of a Sloth near his left ankle floating in the air whilst watching the crossing shooting stars in the sky from a window.

Capital of the Dead arc
King is looking out a window, when Gilthunder comes and tells him that Ban has joined up with Meliodas and Diane. He then wonders why they decided to move, when Gilthunder tells him to not betray his trust. King tells him to keep that stuff to himself and that he has his own way of doing things. Suddenly, a Black Hound, named Oslo, enters the house and King welcomes it back. He asks it if it had found Meliodas and the others, which he understands when it says yes. He then notices something in it mouth and pulls out two Holy Knights Crests, whilst telling Gilthunder that the rest of the Holy Knight better stay away or he will wipe them away along with his enemies . Later, King appears before Ban and delivers a surprise attack by stabbing him in the chest. When Ban questions who he is, King replies by stating that it is not important and quickly pierces his spear completely through Ban. Acknowledging the fact that Ban is confused by who he is, King reveals that Ban had killed the saint of the Fountain of Youth to obtain immortality. Immediately after hearing King stating his sin, Ban quickly sends Ellen and her brother away, and engages in a battle with King.King swiftly hovers towards Ban, attempting to pierce him again with the spear, but Ban jumps up and dodges his attack.

Before Ban could return with an attack, King immediately uses his levitation abilities to perform the technique, Bumblebee. Despite the simultaneous strikes, Ban still continues to dodge all of the strikes and finally attempt a kick on King. Once again, the attack failed, forcing the impatient Ban to activate his ability Snatch, but just before he could activate it, Meliodas arrives and intervened the battle. Diane and Meliodas immediately recognizes King, and upon hearing that this is King, Ban was very shocked and dumbfounded. Despite Diane being happy to meet him, King quickly runs away without saying a word.

After escaping, King continues to spy the rest afar, whilst complaining that he made it appear as if he ran away. He then comments on how cute Diane is and how it is almost impossible that Meliodas still looks the same. Finally, he complains about Ban, stating that Ban are fooling the rest of them. Out of the blue, Oslo barks at him, leading King to ask what is wrong, when he sees Meliodas, Elizabeth, Hawk, Diane, and Ban at the edge of the town. A subtle wind whips up all the petal on the flower field, and the characters are all teleported to the Capital of the Dead. Noticing that Ban begins chasing a mysterious figure, King quickly follows whilst wondering how they were able to enter the Capital.

Whilst continuing to chase Ban, King provokes him, leading Ban to attempt landing an attack which he easily dodges. Noticing that King was able to dodge with ease, Ban begins acknowledging the fact that it is the real King, and begins to fight more seriously. King uses his pillow as a decoy, cushioning Ban's punch and dodging quickly. Stating that he did not desire to reunite with Ban in such a situation, King narrates how he came to discover his hometown to have been burned to the ground and the death of his sister. His pillow transforms into a form of a giant stuffed bear, immobilizing Ban by restricting all of his four limbs whilst he angrily reveals that the Guardian Saint whom Ban killed was his sister. When Ban, in response, declares that he is immortal, King uses a form of his sacred treasure that petrifies all whom it impales. Ban's skin around the impaled area are shown to have petrified.

When Ban's body completely solidifies, King starts to leaves but notices sphere of light appearing in front of Ban. King is then shocked when he notices that it is actually Elaine. Confused, he sees Elaine kissing Ban and undoing the petrifaction. He asks why Ban can see Elaine whilst he could not, revealing his jealousy and disconcert. When he hears Elaine's voice, he asks to let him see her. King then questions whether Elaine is still mad at him for abandoning her and isolating for many years. However, he exclaims that there is no reason to save Ban, because he took everything from her. Angered, King asks what Ban is doing to his sister, only to hear Ban saying that he will make her King is left behind by Ban who heads to assist fighting Meliodas and Diane fighting against Guila.

King continues questioning Elaine why she forgave Ban and not him, but Elaine simply replies that he left her alone for over 700 years whereas Ban gave her renewed happiness in just seven days. Before King says anything else Elizabeth and Hawk comes running by whilst trying to escape from Guila. He asks who they are, so Elizabeth and Hawk introduces themselves and that they are currently traveling with Meliodas. Elizabeth tells him that a Holy Knight has suddenly appeared and is fighting against Meliodas and Diane, who in response, asks her whether she came to seek his help. Surprisingly, Elizabeth bravely tells him to run away instead and tries to borrow his spear to fight against Guila. Feeling inspired by Elizabeth's bravery, King activates levitates and heads to the battle.

During the fight, King suddenly appears behind Guila and thrust his spear through Ban to attack Guila. Ban then asks why he is their, which he says that he is their to help Meliodas and Diane. Guila then blasts herself free and says that King's betrayal was expected, which King says that he had no intention of siding with them. King then easily defense against Guila's next attack. When Guila says that she wants all four to attack her, which King says that he will deal with her alone. King then easily puts Guila on the run by having his spear chase her. When Guila uses Brilliant Detonation, King uses his spear's fifth form to defeat her technique and then to defeat her.

King then turns away, but Guila gets out of the rubble and attacks King. King then was saved by Meliodas and notices that Guila's presence has left. Afterwards King along with the rest are rejected by the capital, which Elaine thanks him for protecting Ban before they leave. When they return to the living world, they sees how Guila got to the capital of the dead. King then volunteers to petrify her but Meliodas says that he will handle this. When they get back to the Boar's Hat, they wonder where the children are and King wonders if Guila did something. The children appear before King and Ban and watch as they disappear.

Later, the everyone is eating fish, when King asks if Diane is okay which she says that see is. Ban then says that she was faking it, which King yells at his says that Diane will not do that. King then asks who Elizabeth is, which Meliodas reveals that she is the princess of the kingdom. King is shocked and turning into his former form. King then introduces himself. They then tells him that he can turn back, which King returns to his form and says that he is exhausted. King then almost gets into an argument with Ban, and Meliodas stops them. Elizabeth then compliments King on his fight against Guila, which King says that the other should have been able to defeat with the sacred treasures. King then asks what happened to their sacred treasure, which he is shocked when he hears what happen to them.

King yelled at them how they lost they sacred treasures which was giving to them by a king (expert Diane because he like her) but Hawk told him what's the problem. King explain by using the lake as a the sin's power and told him that if they used a sacred treasures, they can carrying a whole house of water as power. King then said that it would be pointless to argue and they should find them while finding the other members. The next day King, Meliodas and Elizabeth went out to find information leaving Ban and Diane alone. While walking everyone was looking at them but to they surprised at Elizabeth had gain a wanted poster.

The town found this out and want to capture her but Meliodas saved her and ran away with her. Later when they are in the a old tower, Meliodas told Elizabeth to still put while they find information. Later Hawk ran toward them and told them what happen to Elizabeth, King decided to go back to Boar Hat to get help but then he saw Meliodas face which is serious and said that they are doing it now. Meliodas and King made the plan and when Meliodas saved Elizabeth, they met again in the Boar Hat and went to the next town.

Byzel Fight Festival arc
When they get to Byzel, King volunteers to stay behind with Diane, when she starts to complain. He then heads into town with Meliodas, Ban, and Hawk, after Elizabeth decides to stay will Diane. When they hears about a weapon no one can use being used a prize at a tournament, King says that a sacred weapon can;t be in place like this. He is the shocked when Meliodas and Ban decide to enter the tournament. He then tells Meliodas and Ban that looking for the sacred weapon before horsing around. When he sees the prizes, He notices that one of them is Diane's sacred treasure Gideon. He is the pulled into the sign in line, which he is choked when someone picks one Meliodas up. He is then put down when someone helps them out. He then recognizes the person that helped them and wonders where he has seen him before.

Later, King enters the arena and wonders how he was dragged into this. King was having some doubts about this and told Meliodas that Diane would be angry by doing this but Meliodas told him that Diane would be very happy if he wins which give him some motivation. During the preliminaries round King was running away from his opponents and when the preliminaries round ended, King pass the round by got getting hit but the people say he is cheating since he is floating but the head of the torment let him go. Meliodas and Ban gradually King for being cheap which annoyed him.

King next opponents is Cain who was the one who showed them where was the sacred treasure was and was upset that Ban put his name as "Old Fart". During the start of Griamor and Matrona fight, Matrona reveal that she is wearing Elizabeth clothes. King told Meliodas thinking it could be Elizabeth but Meliodas told him is not because her breast is slightly smaller and her butt is a little bigger to King confusions. When Matrona won and her face is reveal to be Diane, Matrona later punch Meliodas in the stomach for not recognizing her, King followed Matrona and ask her questioning and told her where is Elizabeth which is reveal that she is in Diane bosom and both of them had shrunken.

After Diane and Elizabeth told them what happen to them, Diane jump happily on Meliodas to King shock and having a nosebleed for what she want Meliodas to do to her. Ban informing King that his fight would be starting soon, and then asks him, who has lost a great amount of blood due to nose bleeding, whether he is already dead. When King fight was about to start, Diane cheer him and told him to win which he give her his game face. When the fight begin, King try fighting at Cain and was fighting hard but he was really weak against Cain and was loosing. King use his power Disaster on Cain but Cain sense it and sent him flying out of the ring, loosing the battle.

King was upset that he lose and watch the next fight which is Meliodas and Ban. Both Diane, King and Elizabeth were cheering them on and King told Ban if he lost, he will tell Eliane. During the fight King comment on the power of Meliodas and Ban and was very glad he doesn't have to fight them. Later during the fight between Meliodas and Diane, all the sins member had sense great danger coming toward Byzel, King and the rest put up an act to scare the people away from Byzel and when the Holy Knight Jericho and Guila came by, the Sins split up to fight them each of them alone. After King took most of the people out of Byzel, he returns to find Meliodas and Ban defeated by Guila and Jericho, but after King defeated them with great ease, he give the injury Meliodas and Ban to Elizabeth and Hawk to watch over them while he try to get information out of Guila and Jericho.

When King told the Holy Knights if this was just an act for a bigger event, Guila smile and told him that the Seven Deadly Sins will be defeated. King then sense that Meliodas and Diane powers seem to be completely gone and ask them if they know anything about it but they attacked King again. King told them if they attack again, he will kill them and used his Spirit Spear Chastiefol Form Four: Sun Flower to finish them. When the plant shoot out it is attack, it was slice in half and the girls were saved by Love Helm who revealed himself to be Helbram which shock King greatly. Helbram greets King, addressing him with his real name, "Harlequin". Guila and Jericho immediately state their readiness to support Helbram, which he declines; he instead instructs them to recover the target. When Helbram questions King's nervous expression, the Fairy King, bewildered, questions Helbram as to how he is alive, which Helbram dodges. King expresses his confidence in his power, and has a regenerated Chastiefol attack Helbram. Helbram, though commenting on Chastiefol's regeneration, kicks King, while easily blocking Chastiefol.

King fight off Helbram, Helbram was overpower King, even stopping King spear attack in mid air. While Helbram was about to slice King, King launch a spear attack at Helbram to which it shows his face. Helbram then sense Meliodas raging power coming toward them which King was surprised to sense Meliodas dark power, but when Meliodas landed to they location, King was knock out by the force of Meliodas power. While Helbram watch the defeated Meliodas, Ban got both King, Elizabeth, and Hawk and started to retreat from the area due to Diane having her Gideon back. King later woke up and got his wound treated by Meliodas and Ban, and headed to a new location to find the next Deadly Sins or the sacred treasure.

Armor Giant arc
After the Boar Hat stop at a unknown location, Ban and King start training together to improve themselves after the event at Byzel While they were sparing, Ban ask King if he was taking him lightly and told him he should try to act like he is trying to kill him, but King told him how can he kill someone who is immortal, to which Ban revealed that he could stop him from fighting like he did in Capital of the Dead. Ban then told King about Jericho slash wounds did not heal him to which King find it odd and think it could be the power to slow down time for the wound to heal or might be an illusion power that creates a sensation.

King then told Ban that he isn't acting himself and might be trying not to think about thinking, but Ban then appear behind King in quick speed and toss him toward a boulder to which he stop himself from crashing. Ban told King that he just wanted to crush the Holy Knights and take back the kingdom as soon as possible. King was then surprised to see Ban caring about other peoples business to which Ban told King he feel the same where, but King revealed that he wanted to stop the Holy Knights because he wanted to help Diane.

Ban then reveal to King that he wanted to get the Horn of Cernunnos which shock King because it is the treasure of the kingdom and told Ban if he was planning to steal it but Ban told King that since he is going to save the kingdom, the horn would be a good reward for him. King then reveal the legend of the horn which could have the ability to communicate with the Goddess Clan, King was then shock to find out that Ban is planning to use it and ask the Goddess to revive Elaine from the dead since it wouldn't be a trouble for a Goddess. Ban then told King he should take him more seriously which King agree to. While sparing King reveal to Ban that the main reason he isn't acting himself because of Meliodas change of form at Byzel and that his power resembled Guila and Jericho but more sinister.

King started to think that Meliodas could be from the Demon Clan but was stop by a anger Ban and yell at King and said that Meliodas isn't the same as the monster. King was confuse to the monster Ban was talking about but Ban told King that Meliodas took him in despite being an outcast and being a bad person. Ban told King that only two people in those world accept him for who he is and those were Elaine and Meliodas. Ban then told King that Meliodas would never kill anyone, no matter how bad they were, saying he was too naive to be the same as the monster he fought. Ban and King later met with Diane and Elizabeth who later went to find Meliodas who they were surprised to see a slice up mountain cause by Meliodas.

King and the other later meet up with a group of kids who are role playing as them, and later befriended them. Everyone was later inform that a group of Holy Knights were spotted at the mountain to which the kids went there to find them. Later the Deadly Sins were told by a dying knight that there is a Armor Giant at the mountain which defeated the knights easily. Meliodas then reveal to everyone that giant is Gowther.

King, Meliodas, and Ban headed to the forest to find Gowther, to which they find him having a stand off against the Dawn Roar. However the stand off was broken when one of the kids Pelio attack which smash another kid named Armando. The Deadly Sins then headed to the battlefield while King was shock why would Gowther attack Armando to which Meliodas told King that they would worry about that later. King rush in and took Pelio away from the battlefield before he get hurt. King then use Form Third to petrify Hugo however, Hugo arm was cut off by Simon to save him which shock King, but then King was trap by a Dawn Roar member. As Weinheidt was about to shoot Gowther with a powerful arrow, it was stopped by the injury boy Armando who then reveal himself to be Gowther to the Deadly Sins shock.

After Gowther made the Dawn Roar leave the battlefield by offering the Armor Giant head, Gowther reveal to the Deadly Sins that the Armor has a beast in it which was once a Holy Knight. Gowther left the battle field to make sure Pelio is save from the beast. The Deadly Sins then face off against the beast with King using his Chastiefol Form 2 Guardian to save Meliodas and Ban who were sent flying by the beast. The Guardian however was defeated by the beast with ease which shock King. King told Meliodas he will attack Dale with Fight Fire With Fire-Raining Daggers but has no effect on Dale and the latter spit out Venom Spit which effect King greatly. King was then carry by Gowther and was amazed when Meliodas kill Dale ease with a real sword.

King went back to the bar, feeling better and having a party with the Deadly Sins for Gowther return. Everyone start feeling King due to Gowther realize who King is by smell and notice he smell good in his normal form but bad in his human form to his dismay. Gowther used his power Invasion on King to reveal that he could have killed Dale with ease but did not want do because of Helbram, but King shut Gowther mouth with Guardian. When Gowther revealed that Elizabeth is in love and possibly Meliodas, King quickly try to calm Diane down before she attack anyone but was surprised that she was pass out due to drinking.

Kingdom Infiltration arc
When Meliodas asked for his team's aid in retrieving his stolen weapon, King chided his captain for being careless until the latter explained the nature of the item. After Elizabeth was captured by a female Holy Knight, King witnessed Diane giving Meliodas, Ban and Gowther a very long throw to the Kingdom of Liones much to their astonishment. Diane and King started to travel to Liones on foot along with Hawk's Mother and plan to help out since they are the only two who have Sacred Treasures with them. Diane ask King if he had ever seen Meliodas that angry before to which King said that it was his first time seeing the latter like that. Diane wondered that if she had been kidnapped instead of Elizabeth, would Meliodas get that anger for her, but King told her Meliodas will come for her since they are important friend to which Diane said that Meliodas is kind, but said that Meliodas wouldn't make a face like that.

King told Diane that he will definitely come for her even if he does it alone which made Diane happy, but wonder if he does it to cheer her up. King realize that they should hurry and summon his pet, Oslo which King revealed its ability and try to transport them to Liones quick. But Diane was too big for Oslo and told King to push her butt to get her which made King blush and ordered Oslo to get bigger quick. When Diane was struck by Gilthunder's Thunderbolt attack, King witnessed Oslo being affected by that technique. After his comrade managed to fully enter from Oslo's mouth, King tended to his wounded pet. As Dreyfus was under Gowther's Nightmare Teller, a past version of King was seen glaring angrily at a drunken Ban next to table where Meliodas, Hendriksen and Dreyfus converse. King somehow manages to get to Liones to save Diane from Helbram, however, Diane was already in a near death state by Helbram which King looked in disbelief. King flew down, trying to find the one who damage Diane which the latter said that it wasn't Guila or Hauser since they try to protect her, but King punch Hauser despite his weak strength and started to blame them for not protecting her well. Hauser try to stop him from bleeding King hand, but saw that King was crying for unable to protect his loved ones.

Helbram called King out for being too late for Elaine and seven hundred years ago, and start attacking him from above. But, King fought back with even greater power he had in Byzel. Helbram handle all of King attacks and mention that King had a lot more power than in Byzel which King told Helbram to return to his true form and wanted to fulfill their promise of fighting against each other with full power from seven hundred years ago. Helbram turn back to his true form as a Fairy. King mention that he did not know it was Helbram back in Byzel since he was wearing a old helmet, but an angry Helbram quickly attacked King with a strange power that resemble a Great Holy Knight's power. Helbram told King that he couldn't get rid of his old helmet as it remind him of who he was, but King yelled at him to shut up. Helbram wonder what King see in Diane, but King ask Helbram he should understand how it feels to lose someone. Helbram start using the Sacred Tree branch to kill Diane, but King used all of his attacks to protect Diane from dying. As King was knocked around by the Sacred Tree, Helbram mention that King is unable to fully use Chastiefol to is true powers as the Sacred Tree that was forge from it, forsaken King for his failure in the past and that Helbram is a "True Fairy", the Sacred Tree is on his side. Helbram summon his roots to ruthless kill Diane as King watch. As the smoke clear up, Diane (as well as Hauser, Guila and Zeal) was protected by King with Chastiefol barrier form as Helbram looked in shock as King used up all of his power to make the barrier. Seeing Diane safe, a wounded King smiles.

King fly up close to Helbram, the latter wonder why the Sacred Tree had not forsake King and draw out so much power. King explain that the Chastiefol eighth form was made to protect others and slowly heals them as the Sacred Tree had pollen to heal itself when attack. King looked at Hauser and told him he was lucky to be near Diane when the healing shield appeared, as so was Guila, Zeal, Gowther, and Jericho. King told Helbram that the Sacred Tree was born to protect the Fairy Realm, and has no sentiments of evil. King explain that is the reason for him able to draw out more powers than Helbram. King asked Helbram whether he still intends to kill humans, Gustav and his comrades who were allies to Helbram through Link, were shocked of their superior's true nature and as when the Cardinal ordered his subordinates to give all their powers to him, Gustav and the others tried to break their connection to Link, only to be taken control by Helbram's Blind Follow and gave all their powers to the mad fairy to battle the Grizzly's Sin of Sloth. King summon Chastiefol back to him and perphe to fight Helbram to his fullest power. As the two Fairies clashes with each other with their weapons, Helbram was starting to have a mental breakdown while King remind calm and told Helbram he could rest now, as King slash Helbram, defeating him and breaking his Link orb.

Before Helbram fell, he told King they were too late as Hendriksen has the Coffin of Eternal Darkness and Elizabeth, all the keys required to release the Demon Clan, King asks how Elizabeth was the final key, but Helbram told him to see for himself as he fell. King went close to the near death Helbram and picked up the helmet which Helbram revealed was meant to be a gift from him to King when he got it from the humans seven hundred years ago, and said he was stupid as the helmet was dumb and ugly. King started to break down in tears, saying he agreed and left the helmet on top of Helbram's dead body. King floated towards the injured Diane and apologised to her for getting her into trouble, but Diane instead thanks him for saving her. King told Diane to leave everything to him, but Diane then said Harlequin which surprised King until Diane said that name simply sounded nostalgic to her, but didn't know why. King smiles and said it could have been a dream. Hauser asks King that if the Deadly Sins aren't after the kingdom, why were they here. King explains that Elizabeth was kidnapped and they came to rescue her, but Dreyfus appeared out of nowhere and attacked King from the back. However, the Fairy King used Chastiefol to knock Dreyfus away and held him away by floating the blade at the latter's neck. King told Dreyfus that according to Helbram, Elizabeth was going to be used to bring back the Demon Clan, possibly through sacrifice. Hauser was shocked to hear this news, and Guila reveals that Hendriksen was behind the plan and the New Generation were a part of it. King continued to ask Dreyfus if he was a part of the plan and should pick his answer carefully or die.

Diane attempts to get up while King tries to convince her to rest since she is still badly injured, but Diane refuses as Elizabeth needs to be saved and King's pollen healed her. As everyone gets ready, King tells Diane if Elizabeth is Diane's precious friend, then he would do anything to save her and that Elizabeth is the reason that all the Deadly Sins are reunited. The group then heads out to Hendriksen's location to save Elizabeth. While on their way, King and the other Sins sense a large amount of power exerted with very strong force in a nearby battle. Gowther explains that Meliodas is fighting against three Great Holy Knights, at which Diane begs King to go and help Meliodas. King refuses as he wants to remain near Diane since she is still injured and knows that Meliodas is fine on his own. After being joined by Meliodas, Gilthunder, and Margaret, the group heads to the castle to rescue Barta and Elizabeth. On the way, Meliodas explains to the group about Gilthunder's situation and Arthur informs them of his identity and reason for being in Liones. Suddenly, the group are teleported to a forest. King attempts to fight Vivian, but Vivian returns to Liones, leaving King and the group to be lost in the forest. Fortunately, the group are teleported back to Liones by Arthur's cloaked friend, who is soon revealed to be Merlin of the Seven Deadly Sins.

After Merlin set Elizabeth and Bartra freed Elizabeth was worried over Diane wounds until Diane revealed that she was saved by King and was glad she was fine. Meliodas point out that they have defeated Hendriksen and freed the king, and ask Dreyfus what would he do now. As Dreyfus admitted defeated and was crying to know Griamor is alive, Meliodas happily declare that everything was fixed. However, after Merlin, Arthur and Barta left to treat the king wound, the castle was attacked by Hendriksen and awake every New Generation demon blood. As Jericho transform into Demon and was about to kill Jericho and the slowly transforming Guila, Gowther along with Diane appeared and stop Jericho from killing. Gowther used Invasion on Jericho and Guila to keep them calm. King seeing the situation, was about to kill Jericho to save Diane as she has few strength left. However, Meliodas stop King for a moment and told him it was strange how all of the New Generation suddenly became Demons, and realize someone has active them. Hendriksen came face to face with the Deadly Sins and the Holy Knights, explaining that he did all of this and was after Elizabeth. Hendriksen offers to spare Meliodas and the others if Elizabeth come with him, as he doesn't want to kill "one of his kind", but the group refuse to hand over Elizabeth to him, and King ambush him until he was attacked by Helbram who was revive thanks to Hendriksen forbidden technique. Hendriksen explain to King how he found Helbram and that now he is just a lifeless shell of his former self which brought the Fairy King to tears, knowing that his friend is a slave to Hendriksen. Battling Helbram again, King pleads his best friend to stop.

While fighting against each other again, King refuse to fight him as he already killed him twice, and doesn't feel right to kill him the third time. Ban than attacked King which angry at Ban until Ban explain it was Meliodas ordered as captain of the Deadly Sins to take serious. Helbram draw out his last remaining will to tell King is fine with him if King killed him as he was still his best friend. King, however still refuse to kill Helbram, still feeling guilty over how many time he killed him which made Helbram to yell as he declaim that they are no longer friends which brought a tear to King eyes as he summon Chastiefol Form Four, Sunflower and killed Helbram by destroying his body as the latter smiled in relive. King pick up Helbram old helmet and wonder if they are still friends in the end. As Ban figure out a way to return New Generation back to normal, Ban and King teamed up to remove the strange "plant" inside of them while the others went and save Elizabeth.

King rejoin the other Deadly Sins member at Merlin Old Castle to face Hendriksen in the final battle. As King battled against Hendriksen with the aid of Meliodas and Diane, Ban was slam against the wall by Hendriksen which made Ban furious as he revealed the wall he smash against was a Red Demon to everyone shock as King believed that Demons were a myth. King was even more shock when he found out that the Red Demon was in Fairy King's Forest during it destruction which made King question Ban sin and killing Elaine. When Ban slam Hendriksen into the ground, the Deadly Sins minus Diane due to her size, went inside with King using Form Seven: Luminosity to light the way. The Deadly Sins were shock to see a Gray Demon which Hendriksen revealed that it has greater power than the Red Demon and put its blood into him, gaining him a new form and much more powerful as he easily destroy Ban upper half.

Meliodas along with the other Deadly Sins, were blown out of Merlin Old Castle and badly injuries due to Hendriksen new found power. Diane, however, awake and used Rising Meteor on Hendriksen, sending up toward the sky because of the rising ground. Diane told King to finish him which King did by almost using Form Eight until Hendriksen used Dark Nebula which easily defeated King and Diane. King grow furious when Hendriksen killed Hawk while protecting Meliodas and Elizabeth.

Abilities/Equipment
King is shown to be an incredibly formidable opponent, able to deftly maneuver his spear with ease. He is strong enough to overpower a Holy Knight single-handedly. As the fairy king, King has demonstrated a number of unique abilities such as the ability to levitate or fly and the ability to change his appearance and clothes at will as well as possessing great speed equal with Meliodas and Ban. Also, upon awakening his true power, Meliodas and Ban commented that his strength grew to 'an incredible level.' This was later re-affirmed when he defeated Helbram, a Great Holy Knight level combatant, while protecting all the injured in the area and almost immediately after, swiftly defeated Dreyfus, one of the Great Holy Knights of Liones within moments, in spite of the injuries he sustained from his battle with Helbram. During his reign as the Fairy King, his power was said to be so great that it kept the human kingdom at bay from invading the Fairy King's Forest. It should be noted that this included the Holy Knights of Liones and that King had not yet received his sacred treasure at the time, indicating that his power is truly immense, even by the standards of the Seven Deadly Sins.

Despite his great power, King is actually very physically weak but made up for the lack of strength with his sacred treasure Spirit Spear Chastiefol. In spite of his lack of physical strength, he has shown a remarkable level of durability as shown in his second battle with Helbram. It is possible that King has physical strength in his human form much like Helbram in his but was drained to a minimum by Ban's Snatch 12 years ago. It was believed that King was able to control the Sacred Tree a long time ago and with it draw out the true power of a fairy, but the tree abandoned King for an unknown reason. This was later proven to be false as the Sacred Tree has no evil intentions at all and it was King who did not want to fully utilize the Sacred Tree's powers.

Spirit Spear Chastiefol
King's sacred treasure, the Spirit Spear, Chastiefol, is a spear crafted from a sacred tree only found in the Fairy Realm. It is much stronger than steel and possesses the mysterious qualities of the tree, which King's ability, Disaster, draws out. It has several different forms, including a pillow which can act as a shield, different forms of spears, and a large stuffed grizzly bear.

Abilities

 * Disaster: Not much is known about this ability as of yet, except that it apparently enabled King to trigger Cain's rheumatism.
 * Levitation: King possesses the ability to levitate and is capable of flight. He demonstrates great skill in using it and is able to move quickly through the air. He can also utilize this ability to levitate objects and manipulate their trajectory without the need to make any direct contact.
 * Transformation: An ability that allows King to change his physical appearance as well as his clothes. In order for King to change appearance, he requires a great amount of concentration. This ability appears to leave him exhausted, however King was able to maintain his transformed appearance for quite a while ten years ago, implying he has immense willpower. Somehow King shifted to human form almost randomly in either comedic or serious situations.

Meliodas
King and Meliodas are both members of the Seven Deadly Sins. King enjoyed his time with Meliodas in the past and still cares about him to this day. When King joins up with the group, he occasionally disagrees with Meliodas' actions, but still trusts him as a good captain. After Byzel, King grow struggle at the fact that Meliodas could be a demon himself. Despite finding Meliodas perverted antic shameful, King still respect Meliodas for that shameful nature since King is too shy to be bold for Diane and wanted Meliodas to teach him to be more bold.

Diane
King and Diane are both members of the Seven Deadly Sins. He shows affection for her, but is too shy to reveal it. When King is forced to do something he dislikes, he can easily be motivated if it will make Diane happy. Currently, Diane does not know about his feelings for her. King shown to love and care for Diane whenever she is hurt or upset, as she was ruthless hurt and put to near-death, King was willingly to use up all of his powers to protect her. In the past, King looked after the young Diane for the past five hundred years, and to this day, he still cared and loved her.

Ban
King and Ban are both members of the Seven Deadly Sins. He hated Ban and wanted to kill him, in order to avenge his sister Elaine who was believed to be killed by Ban - even though she actually died because of the Unnamed Demon's purgatory fire. When Elaine told him to protect Ban and join up with the group, King reluctantly accepts her request and assists the fight against Guila. Although he longer despises Ban as much, he still feels uncomfortable around him. Later King grow to accept Ban like Elaine told him so when the latter reveal his plan to revive Elaine but still feels uncomfortable.

Gowther
King and Gowther are both members of the Seven Deadly Sins. King shown to be annoyed at Gowther clueless and for revealing secrets.

Elaine
Elaine is King's sister, who he left at the Fairy King's Forest for 700 years, protecting the Fountain of Youth. King loved his sister so much that he was upset at the discovery of her death, vowing to avenge her by killing Ban, who was reported to be the one who killed her.

Elizabeth
King and Elizabeth share a fairly good friendship. King respects her for being a princess and her bravery for trying to pull his spear to help the sins. He worries for her well-being, as shown when he assists Meliodas in saving her from the Ceramic Tear Inn after she was captured by Griamor. He transformed into his chubby form wearing royal attire to greet Elizabeth formally, believing that it was more respectful.

Hawk
King and Hawk seem to share a good friendship, and sometimes King calls him Mr. Pig. King shown some respect for Hawk for trying to pull his spear to help Elizabeth to help the sins, but he shows it more to Elizabeth.

Helbram
Several years ago, King and Helbram were best friends, despite having different views on humans. Helbram trusted King very much, but frequently teased him. Gowther mentions that Helbram is the reason he is unable to use his full power. When King believed he killed Helbram, he decided to atone for his sins and was sentenced to imprisonment for one thousand years.

Capital of the Dead arc

 * Ban vs. King (Part 1): Indecisive
 * Ban vs. King (Part 2): Indecisive
 * King vs. Guila: Win

Byzel Fight Festival arc

 * Cain vs. Old Fart (King): Loss
 * King vs. Guila & Jericho: Win
 * King vs. Helbram: Indecisive

Armor Giant arc

 * Meliodas, Ban, King & Gowther vs. Dale: Win

Kingdom Infiltration arc

 * King vs. Helbram (Kingdom Infiltration arc): Win
 * Meliodas, Diane, Ban, King & Gowther vs. Hendriksen: Lose

Trivia

 * The technique Bumblebee connects with the color of King's sacred treasure which is the color of bees.
 * King once had a cat that he lost his snacks to in a fight.
 * King has a sweet olive scented body odor in his child-like form, but a musty, sweaty smell in his chubbier form.
 * King dislike drunkards - this is one of the reasons he does not like Ban.
 * King sleeps on a hammock besides the window on the 3rd floor of the Boar Har - an excuse to watch over Diane.
 * King currently shares his room with Ban.
 * King is skilled at sewing clothes, having made Diane's and his own outfit.
 * Meliodas claims that King's hobby is peeping, which the latter denied.

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