Two hours away from Tokyo is Kiyosato Hospital. Shuji is assigned to work there after completing Medical School, but the fact that his father died there during a operation while he was in college haunts him to this day. In fact, the reason why Shuji became a doctor is the fact his father died and he wanted to be able to investigate just exactly why he died. Since it was almost 10 years ago, he finding that he is running into a lot of dead ends. Upon reporting to Kiyosato, he learns that Dr. Takao (the doctor who was operating on Shuji’s father when he died) is now the assistant director of the hospital. Also on the same day, he sees Misako, his girlfriend from the time that his father died. However, Shuji soon learns that Misako is now married to Dr. Takao under some suspicious circumstances. This leads Shuji to investigate Dr. Takao and take back Misako by what ever means are necessary…

Yukka, a young college student and Yazaki thought they would spend the rest of their lives together. But after a Zero Sum concert one night, Yukka is taken and gangbanged by the band members of Zero Sum. Yukka does not tell Yazaki as he seduces her again and again. However, the experience of the gangbang has aroused sexual desires within Yukka which leaves sex with Yazaki unsatisfying.
Yukka is torn between her love for Yazaki and her lustful desires for the rest of the band leaving her not knowing what to do…

Princess Kurama was confined in a castle. She tried to escape from the castle with her guardian Oka. However, Gensai notice it, and ordered Shura and Dodorome to take her back. Finally, she was caught by them. On their way back to the castle, Princess Kurama jumped from the cliff, and shouted the moon to summon Gauss.
On the other hand, it is present day. Nakamura Daisuke is enjoying a date with Hazuki. At the very moment he tries to confirm their love, his mark on the neck shines, and he is swallowed into the moon. He meets Princess Kurama. However, while he is left alone for a while, Dodome deceives him, and takes him to the castle.

Youhei lives a peaceful life with his mother Kaho, and cousin Fumika. One day, Kaho suddenly confesses to Youhei that she is actually not his mother by birth. Although this depresses Youhei, Kaho assures him that he can continue living with her and Fumika, whom he has always treated as a sister, as if nothing has changed. However, a woman claiming to be Ikue, younger sister to Youhei’s actual birth mother, moves in next door and asks that Youhei moves in with her. While Youhei is in a state of confusion, the three women attempt to use their voluptuous bodies to seduce him.

Leave it up to handsome coach Akira to make sure that the Aota Academy’s girls volleyball team members learn excellent technique and ball control. In the first episode, volleyball ace Nanase joins the team, but she can only get fired up to play when the coach gets her “hot.” When Akira gets beaten up and sent to the hospital, how will the team be able to compete in the championship if Nanase can’t get in the mood to play? Find out in this fun and funny sexy adventure!

During a study session, Megumi confessed her feelings to Satoru. However, not only did she have feelings for him, but he also had feelings for her. So… the rest is history.

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.

Yoshiyuki loves having sex with girls. He is now a teacher and enjoys sex life with female students. Now that he has had sex with almost all of students, he decides to move to a different school. His next school is a famous girls’ school…. He meets various pretty girls there and soon plans to give “educational guidance” to them….