Two ancient races return to earth in the year 2089 for a final battle in this horror-action animé. Centuries ago, the Demons and the Guardians waged a war. Few members of either race survived, but now Takamiya, the Dark Master, is plotting to return the demons to earth and vanquish the human race. Into this intrigue steps Shizuma, who's out to avenge herself against one such demon. She enlists the help of Tsunami Shijyo, an enigmatic man with a score of his own to settle. Shijyo eventually dukes it out with a pair of adversaries against the backdrop of a moody, post-industrial cityscape. Based on the original manga by Saki Okuse, Twilight of the Dark Master includes a screenplay credit for Duane Dell'amico, whose previous credits include one-sixth of the script for the live-action Hollywood film Sleep With Me.