In a world where devils manifest from human fears and wreak havoc, a destitute young man named Denji makes a desperate pact to survive. After inheriting his father's crippling debt, he is forced to work for the yakuza as a devil hunter, living in squalor with his only companion, a chainsaw-wielding devil dog named Pochita. When he is betrayed and killed by a devil in the employ of the yakuza, Pochita sacrifices itself to merge with Denji's heart, granting him the ability to transform into the fearsome Chainsaw Man. Now, as a weapon in the employ of the Public Safety Devil Hunters, Denji must hunt down more powerful devils under the watchful eye of his cold and ambitious handler, Makima. Alongside fellow hunters like the cynical Aki Hayakawa and the hyper-violent Power, Denji navigates a brutal world of visceral combat, bureaucratic horror, and twisted morality, all while chasing the simple, human dreams of a normal life, a girlfriend, and a decent meal. This dark fantasy anime blends breakneck action with pitch-black comedy and genuine pathos, creating a uniquely chaotic and unforgettable experience.