Samurai Sword is a major antagonist in Chainsaw Man, introduced as a lethal hybrid who can transform parts of his body into blades. He serves as one of the Public Safety Devil Hunters’ most dangerous enemies during the early arcs, working with other hybrid assassins against Denji. His role is to embody the threat posed by weapon hybrids and to drive the conflict between Denji’s chaotic, reluctant heroism and the violent underworld surrounding him.