Broke young man + chainsaw demon = Chainsaw Man! Denji was a small-time devil hunter just trying to survive in, a harsh world. After being killed on a job, he is revived by his pet devil Pochita and becomes something new and dangerous, Chainsaw Man!

Denji's a poor young man who'll do anything for money, even hunting down devils with his pet devil Pochita. He's a simple man with simple dreams, drowning under a mountain of debt.

But his sad life gets turned upside down one day when he's betrayed by someone he trusts. Now with the power of a devil inside him, Denj's become a whole new man, Chainsaw Man!