Negative Happy Chainsaw Edge

Eri Yukizaki, is a girl locked in battle with a chain-saw wielding incantation of true evil. But like the demons that boil inside her heart, the 'Chainsaw Man' doesn't seem to die no matter how much she stabs him. As she fights, a young man, Yamamoto watches, love-struck, wishing he could be more than just her useless bicycle courier.