Katana Man is a prominent antagonist in the anime and manga series Chainsaw Man. He is a devil-human hybrid with the ability to transform his arms and head into deadly katanas, making him a formidable opponent. Katana Man is driven by a personal vendetta against the protagonist, Denji, and seeks revenge for the death of his grandfather, the Yakuza leader. His relentless pursuit of Denji leads to intense battles, showcasing his ruthless and determined nature. Katana Man's character adds significant tension and conflict to the storyline, making him an essential part of the series.