Chainsaw Man. Volume 3, Kill Deji
"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! A mysterious devil is demanding Denji's heart! But will the devil hunters from Division 4 agree to this deal to save themselves? Or will Denji have to do what Denji does b...