Chainsaw Man / チェンソーマン [Parody]

Chainsaw Man is a Japanese manga series written and illustrated by Tatsuki Fujimoto.
Chainsaw Man follows the story of Denji, an impoverished teenager who makes a contract that fuses his body with that of Pochita, the dog-like Chainsaw Devil, granting him the ability to transform parts of his body into chainsaws. Denji eventually joins the Public Safety Devil Hunters, a government agency focused on combating Devils whenever they become a threat to Japan.