Long ago, the Great Mother Spirit created demons, guardians, and humans. During 2089, only a few demons and guardians remain and in the city of Neo-Shinjuku.The guardian, Tsunami Shijo (an ancient fire manipulator from days long ago) is out to aid a fledgling human race. Tsunami is looking for a human who was transformed into a monster by drugs. This leads him to Mr. Takaiya, the Demon leader, who killed his lover.