Chainsaw Man is a Japanese manga series written and illustrated by Tatsuki Fujimoto. The story follows Denji, a young man who is struggling to make ends meet and pay off his late father's debts. Denji is eventually killed by a demon and is brought back to life as a hybrid demon-human being with the ability to transform into a chainsaw-wielding monster. He becomes a member of the Public Safety Devil Hunter agency and works to defeat demons and other supernatural threats, while also struggling with the difficulties of being a hybrid and the discrimination he faces from society. The series is known for its intense action, dark humor, and emotional depth.