Four teenage girls are abducted, kidnapped, and tortured. Designated by numbers on their skin with a hot iron, young girls are ranked in the evening....

There is a "school" that abducts and confines girls to re-educate them as sex slaves. Kyoko, a bad schoolgirl, was caught by a witch and turned into...

Miho is a high school girl who is kidnapped by a mysterious "school" and trained as a slave. She is left unsold at the auction and is saved by a man...

It’s been a year since the “school” where captured schoolgirls were trained as sex slaves was destroyed. But a survivor, Arikawa,...

Kyoko was the only one who succeeded in escaping the "school", but an unknown virus was injected into her body that will kill her if left untreated....

The day of human auction has come at a dreadful “school” that has been reopened. Among the “products” on the stage, there is...