King

King is the legendary Grizzly Sin of Sloth and the former strongest fairy king. King possesses the Sacred Treasure Spirit Spear Chastiefol, which can transform into various forms for different combat situations. King harbors deep feelings for Diane, the Giant Sin of Envy, which developed from their first meeting in the Fairy King's Forest. King maintains a lazy and carefree personality despite bearing immense responsibility as the Fairy King. King demonstrates exceptional strategic thinking and battle prowess despite appearing physically weak. King shares a close bond with his sister Elaine and holds deep guilt over failing to protect her and the Fairy King's Forest. King's true fairy form reveals magnificent wings and a more mature appearance, significantly boosting King's magical powers. King values justice and friendship above all else, showing unwavering loyalty to Captain Meliodas and the Seven Deadly Sins.