The Chainsaw Man returns in novel form with four stories of weapons against devils! Power lives her favorite anime, becoming a very clever detective or at least that's what her "audience" wants to believe! Denji is by her side as an assistant in an investigation into the disappearances at a hotel in the mountains. Other stories focus on the relationship of Quanxi and Kishibe nine years after they met, on the first mission of Himeno and Aki together, and on the dream trip of Denji, Power, and Aki to Enoshima.