In the anime Kekko Kamen Surprise!, the primary antagonist is a villain named Mangriffon. He is the founder of a music school established on a remote, deserted island, which serves as a cover for his true activities. Under the guise of an educational institution, Mangriffon operates a scheme where the female students are exploited and used as sexual slaves by the faculty. His role in the story is to act as the direct opposition to the special agent Kekko Kamen, who is sent to the island to investigate and dismantle his operation. No further reliable information is available regarding his specific background, personality, motivations, key relationships with other characters, any personal development throughout the film, or any notable abilities or combat skills he might possess.