This is a horror action manga about a young man who works as an Onryoji, a spiritual warrior who has turned his own body into a weapon in order to do battle with evil spirits. In the first case, a university professor named Kandagawa goes to a clinic in order to seek treatment, but the doctors find nothing wrong with him... that's when the Onryoji arrives on the scene. It turns out that Kandagawa's been cursed, and his organs are gradually disappearing, one by one. Can he be saved?