Gustaf

Gustav is a Holy Knight who serves under Helbram.

Appearance
Gustav has short hair and is dressed in a regal Holy Knight attire.

Personality
Though not much is known of Gustav's personality, he is shown to be loyal to Helbram (until when Helbram revealed his intention to kill humans); as he aided his superior by offering his powers to Helbram's Link. Gustav appears to have no confidence on his sister in becoming a Holy Knight like himself. Despite that, he shows concern of his sister's safety.

History
Gustav argued with his younger sister Jericho that she'll never become a Holy Knight like him when she tells him of her dream of becoming one.

Kingdom Infiltration arc
While fighting Diane, Helbram used his ability to call upon Gustav and asked if he could borrow his powers, to which Gustav willingly agreed. Gustav's assistance was short-lived, however, as he was taken out after Helbram used place-switching magic to avoid taking a direct hit from one of Diane's powerful techniques, leaving Gustav to take the full impact of the blow. He is later seen to be perfectly fine,with no sign of injury whatsoever.

When King asked Helbram whether he still intends to kill humans, Gustav and his comrades 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. After an intense fight between fairies, Helbram's defeat broke the Link orb which freed Gustav and his fellow Holy Knights from his control although they were knocked unconscious when the Link orb's power feedback pushed them back hard.

Once woken up, Gustav found himself in the ruined castle that him and his fellow Holy Knights were once in much to his shock and tries to wake his comrades up. Gustav remembered Helbram forcing them to use their powers through Link and hurtful words towards his sister, but was shocked to see the Liones capital being attacked by Demon like creatures and the Holy Knights were getting slaughtered, which Gustav called it was like Hell.

After relaying orders to assist their comrades fend off the Demon hybrids and evacuate the citizens to the Holy Knights who survived the castle attack, Gustav searches for Jericho, hoping she was safe. But unfortunately, Gustav was apparently crushed to death by his own sister's Demon form, leaving her inner self desperately plead anyone to stop her while her darker side gloated in triumph, holding her brother's body like a trophy.

Abilities/Equipment
Gustav's strength is unknown, but as a Holy Knight it can be assumed he is quite powerful in his own right.

Abilities

 * Ice: A power that allows Gustav to generate and manipulate ice.