Denji has a simple dream—to live a happy and peaceful life, spending time with a girl he likes. This is a far cry from reality, however, as Denji is forced by the yakuza into killing devils in order to pay off his crushing debts. Using his pet devil Pochita as a weapon, he is ready to do anything for a bit of cash. Unfortunately, he has outlived his usefulness and is murdered by a devil in contract with the yakuza. However, in an unexpected turn of events, Pochita merges with Denji's dead body…
Denji has a simple dream—to live a happy and peaceful life, spending time with a girl he likes. This is a far cry from reality, however, as Denji is forced by the yakuza into killing devils in order to pay off his crushing debts. Using his pet devil Pochita as a weapon, he is ready to do anything for a bit of cash. Unfortunately, he has outlived his usefulness and is murdered by a devil in contract with the yakuza. However, in an unexpected turn of events, Pochita merges with Denji's dead body…