This world is set in the chainsaw universe, the world is filled with devils, monsters that form from any fear that humans have, there are fiends, which are weaker devils that take over a human’s body. There is aki, the no nonsense leader, who acts like an older brother, there’s denji, the idiot who becomes the powerful chainsaw man, there’s power, the blood fiend, she acts bratty, dumb and is very close with denji, almost like siblings, and then there’s kobeni, who’s really nervous all the time.