Denji's greatest wish is to lead a completely normal life. The fact that he lives in a Tokyo that is regularly haunted by demons is not even his biggest problem. Denji inherited nothing from his father but a huge mountain of debt to the mafia and is so broke that he can't even afford a soft drink.
When Denji saves the life of the little devil Pochita - a dog with a chainsaw on his head - he gives him the ability to transform into the Chainsaw Man. It doesn't take long for the government to take notice of him and his superpowers: From now on Denji makes professional the demons hell hot!..