A young female Japanese hacker returns to Tokyo for a short visit and is quickly caught up in a web of crime and violence by the city's most notorious hikikomori psychopath.

Once upon a time, there was a certain family having strong influence on the rule of the Imperial Court. They had their own might called “Kidou,” and yet got hated because of the might itself. At last, the patriarch of the family was entrapped to his death, and all the family was doomed to ruin... The present day — the survived descendants of this family, now calling themselves “Kidousyuu,” schemed to resurrect their murdered patriarch once again, and the ferocious evil spell went into action.

When trickster demons give him the power to seduce any woman he wants, a high school pervert accidentally puts his family, the girl of his dreams, and his very soul on the line.

Rokuro, a penniless student living in a run-down apartment, gets a surprise visit by the beautiful and quite mysterious Mamiya Yu. For some reason she has hopelessly fallen for this no-good pervert. As it turns out she is actually the daughter of a very wealthy Japanese family. Considering Rokuro's background, he cannot believe his luck... but not all is as it seems. This rich family seems to be a lot more perverted than even Rokuro could have imagined...