Diane

Diane (ディアンヌ) is a member of the Seven Deadly Sins and is The Sin of Envy with the symbol of the Serpent. She is a gigantic woman who shows affection for Meliodas, and gets jealous when he is with another girl.

Appearance
Diane is a young girl with pink eyes and medium length brown hair which is tied up into Mega Twintails. Despite being a beautiful looking maiden, she is in fact a giant from the giant clan, and is several times larger than ordinary humans. She wears a one piece orange suit, boots that extend almost up to the knees, and a metal armband which is embedded with shiny metal pebbles.

Diane's wanted poster depicts her with light colored hair.

Diane's Seven Deadly Sin tattoo is located on her left outer thigh.

Personality
As the Serpent's Sin of Envy, her main traits are envy and jealousy. She shows strong affection for Meliodas, so when she met him together with Elizabeth, she grew very jealous and threw him away whilst calling him a cheater. In contrary with Elizabeth, she wants to be small instead of being gigantic.

Although she hates bugs, if Meliodas's life is at stake, she is willing to fight against her fears. She is also fairly confident in her strength and abilities.

History
Years ago when Diane left her giant's clan, she had gotten into an argument with some knights. She was then helped out by Meliodas.

10 years ago
Diane along with the rest of the Seven Deadly Sins where summoned to a castle to meet with The Great Holy Knight. When they find him dead, Diane along with the rest are ambushed by the Holy Knights. Diane was able to escape and make it to the Forest of White Dream, where she enslaved the Imps Hide and Seeks to work for her.

Introduction Arc
Diane's wanted poster is shown on a board within the Boar Hat.

Forest of White Dreams Arc
Diane is asleep in the forest, when the imps tells her that they let a Holy Knight to her. She then wakes up and grabs Meliodas, who she cuddle with after realizing its him. When she finds out that Elizabeth is travelling with Meliodas, she hits him until they explains things to her. She then hears that explanation about the day ten years ago, after which she decides to help him. She along with Meliodas, Elizabeth, and Hork are captured by Gilthunder. Diane then frees herself along with Meliodas, after Gilthunder kicks Hork away and Elizabeth chases after him. She then watches as Meliodas and Gilthunder fight each other. After Gilthunder tells Meliodas about Ban and King, she grabs him and throws him away. Then when Elizabeth and Hork get back, she yells that Elizabeth for being touchy with Meliodas.

Later on, she is walking with the rest of the when they decide to go free Ban from the Baste Dungeon. She then gets mad after Meliodas looks at Elizabeth's panties and patted her. When Meliodas falls over from him wound, She along with the rest get him to a doctor.

Baste Dungeon Arc
Diane waits outside as the doctor heals Meliodas. She then gets worried after hearing the doctors explanation. Diane then tells Elizabeth that she is heading for the dungeon. When Elizabeth catches up to her and explains how she wants to of help, Diane tells her about she first meet Meliodas and how she felt at that time. She also says that she wishes to be small and the heads off to the Baste Dungeon. She then notices that there is a black cloud over the Baste Dungeon. When she finds out that it is bugs, she hunches over and screams. She then hits the grounds, causing pillar to come up and destroy the bugs. She then jumps out of the town and runs towards the prison.

Abilities/Equipment
Diane is shown to be incredible strong. She was able to punch the ground and use the ground to stop a horde of bugs from destroying a town. She has also shown to have great endurance as she was able to resist Giltunder's lightning and even break free from it.

Meliodas
Diane and Meliodas are both members of the Seven Deadly Sins. Diane is madly in love with Meliodas. She easily gets jealous and hits him for being close to other women. She respects him a lot and calls him captain.

Ban
Diane and Ban are both members of the Seven Deadly Sins. Nothing is known about the two interacting.

King
Diane and King are both members of the Seven Deadly Sins. Nothing is known about the two interacting.

Merlin
Diane and Merlin are both members of the Seven Deadly Sins. Nothing is known about the two interacting but since Diane doesn't like any women around Meliodas, she may not like her.

Elizabeth
Diane dislikes Elizabeth as she is jealous of her close relationship with Meliodas. She envies her small stature and her abilities to be able to take care of Meliodas when he is sick or ill.

Trivia

 * She loves to eat whole roasted pigs.