Denji's a poor young man who'll do anything for money, even hunting down devils with his pet devil-dog Pochita. But his life gets turned upside down when he's betrayed by someone he trusts. Now with the power of a devil inside him, Denji's become a whole new man -- Chainsaw Man! 

In order to achieve the greatest goal in human history -- to touch a boob -- Denji will risk everything in a fight against the dangerous Bat devil. But will getting what he wants actually make him happy...?