King is the Sin of Sloth with the symbol of the Grizzly bear. He, being the brother of the Fairies' Fountain of Youth's guardian, Elaine, came to believe that Ban had killed her, and thus wanted revenge. After discovering the truth, he also joins Meliodas and the rest. His sin is because he left his best friend ,Helbram, to suffer and forgot to come after him. Before, King and Diane have already met and became friends though King made Diane forget all about him. Currently, Diane still doesn't know.
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