A man awakens as a ghost with no recollection of his past, bewildered by his sudden transformation and the absence of any memories to anchor his identity. His confusion deepens when a mysterious soul named Ochokotama appears with an urgent plea: several of the spirit's companions have been condemned to hell and desperately need rescue. As the truth behind his ghostly state and Ochokotama's plight gradually unravels into something far more intricate than initially apparent, the newly spectral protagonist realizes that answers may lie with the Great Enma—a figure of considerable power in the afterlife. Driven by both mystery and compassion, he agrees to descend into hell alongside his new companion to uncover the truth and attempt to free those trapped below.