King is a character who appears in the Devil May Cry anime series, serving as the central figure in an episode focused on high-stakes gambling. Known as a legendary gambler, King’s reputation is built on the terrifying consequence of losing to him. According to stories circulated among gamblers, anyone who loses a game to King is killed shortly afterward. This legend has caused numerous gamblers who have accepted the challenge to go missing, making King a figure of fear and fascination within the gambling underworld.

The reality behind the legend is that King is not a human but a demon. This demon is the true host of a deadly poker game where the stakes extend beyond money or possessions, directly involving the players’ lives. The character's role in the story begins when a woman hires Dante to help her husband who has become addicted to gambling. Through his investigation, Dante hears the rumors about King and enters the poker game to uncover the demon among the players. The demon’s true identity is eventually revealed to be Sarah, who is the mastermind behind the deadly poker matches. In the end, King is confronted and defeated by Dante, bringing an end to the legend. The character possesses no notable abilities beyond the demonic nature and the ability to orchestrate these life-or-death games.