The main character is a senior who attends Rinin High School; the only school among the mountain town of Rinin City. The main character, who is the student president of the high school, has another hidden persona. The persona as head of the “Gang Rape Club”…

A dark ceremony existed that had been handed down for thousands of years in the old town of Rinin; the name of the ceremony, in particular, in the oldest of records. That ceremony, enacted to protect the region from disease and crop failure as a curse from the region’s guardian deity, Hime Iwanaga, occurs in the evenings between the new moon and full moon, in which a maiden is disguised as Konohanasakuyabime and gangraped to appease Hime Iwanaga’s anger. In regards to the maiden, there must be an important man participating in the gang rape, in other words, that man must be related in blood to their wife or lover, mother or daughter, younger sister or older sister, and the like, and after the gang rape, if a pregnancy occurs, Hime Iwanaga’s anger is abated, and a good harvest and safety upon the region will be promised. However, if a pregnancy does not occur for the sake of suppressing Hime Iwanaga’s anger, the maiden is supposed to be covered with semen, and floated down the river alive, as a sacrifice.

And now—After the Tashio era, the ceremony itself had vanished into the dark history, but had still continued on at Rinin High School; the cruel, improper traditions being inherited over into a secret society through actions carried out by the Gang Rape Club. For generations, the student president of the High School has served as the head of the Gang Rape Club, not allowing even one day to pass uneventfully, submerging numerous women to the dark, suffocating pleasure.

A former science teacher receives a mysterious recruitment document, inviting him to a prestigious school. However, this school is not what it seems…

High school student Takumi Kusuki works as a wood seller in a remote village. One day, he receives a visit from Satsuki Satonaka, his tomboyish childhood friend who once excelled at basketball. When an accident ended her ambitions prematurely, Kusuki was the one who rescued Satsuki, earning him lifelong gratitude from her and her family.

After discovering Kusuki’s porn magazine collection, Satsuki teases him about it. But when her provocations do not elicit the desired response, she starts to act more lasciviously until Kusuki cannot resist her any longer.

It has been a year since Misako became Yosuke Amamiya’s wife, but her new stepson Kazuhiko is still barely acknowledging her, let alone seeing her as a mother figure. However, there is a more pressing matter on her mind: when she is alone at home, she frequently receives menacing calls from a stranger possessing detailed knowledge of her day-to-day life. Unable to bring this issue up with Yosuke, she remains silent about these disturbing interactions.

Just as Kazuhiko starts warming up to Misako, things take a darker turn when she gets a sex toy delivered to her door. Left unsatisfied by her workaholic husband, she begins to engage in a new pastime: masturbating while on the phone with the unknown speaker. One day, Misako realizes that she is not the only one with a dirty secret when she witnesses Kazuhiko pleasuring himself with her underwear! Now aware that her stepson thinks of her as a woman, where will all this sexual tension lead?

Rina and Shiori are two women who are not to be messed with. One night, when out late in the karaoke bar, the staff of the karaoke bar tries to take advantage of the two ladies. There is a disagreement about the bill, but the two ex-gang ladies fight back. As revenge they decide to rape the karaoke staff and force them to have sex with each other.

Justice has never been so naked!

A super-secret cult of lesbians performs erotic experiments on bodies from the local hospital! Their purpose: to revive the spirit of their ancient leader in a virile human form. Now it’s up to the Midnight Strike Force, a team of busty justice fighters, to go undercover (and under the covers) to stop the nefarious acolytes before they succeed in their diabolically dirty schemes!

OVA produced by the manga publisher Toranoana. Maria is a high class Victorian Maid. She works incredibly hard to satisfy her master’s every whim, whether in his study, the bath, or bedroom. Shy and sultry all at once, can you resist her allure and willingness to serve?