Masayoshi Kurozuka is a typical high school student...until the day he finds out he is the reincarnation of Oni-hime, a wicked woman who sold her soul to the devil during Japan's Sengoku period. Masayoshi has to accept his new identity while battling hordes of ghosts—the lingering spirits of men killed by Oni-hime. To break free from this curse, Masayoshi must uncover the truth about Oni-hime's pact with the devil and clear her name in the eyes of the vengeful spirits.