Chainsaw Man follows Denji, a broke teenager crushed by debt and surviving as a devil hunter with the help of Pochita—his pet Chainsaw Devil. After a brutal betrayal, Denji is resurrected when Pochita merges with his heart, giving him the terrifying ability to transform parts of his body into chainsaws. Now recruited by the Public Safety Devil Hunters, he enters a world filled with devils, bloodshed, dark humor, and emotional chaos. Balancing his simple dreams of a normal life with the brutal reality of devil hunting, Denji faces monstrous foes, twisted allies, and the haunting mystery behind the Gun Devil.