A cross over between the two hentai RIN×SEN and RAN→SEM.

While being a regular part of beach volleyball, Kiryu Saori was not able to show her ability in the game because of stage fright. In order to overcome it,she starts with special intensive training with her coach. Special training and H will start in the name of stamina.

A cross over between the two hentai RIN×SEN and RAN→SEM. The story starts with Urara still being abused in the Kurodou institute. One day she is told by the headmaster that her fiancee, the one that set her with a great debt and only her body to pay for it, has been seen in the Believe lab. Luckyly, two lecturers at the lab, the Ichinose sisters Riko and Anna introduce Urara to the lab master, Majima. Then in a luxurious and grossly decorated room, Majima can’t stop licking his lips ogling the sexy Urara. He tells her she being chosen by god, and that she must enter the seminar to obtain answers. But, the seminar is a seminar in name only, nothing but free sex every day involving the poor Urara. One day Urara discovers the surprising reality from Riko’s mouth. The real name of her fiancee is Kaji, a lecturer in the Believe Lab. Furthermore, her senpai Asuka is also a participant in the lab. With a lascivious smile, Riko makes Urara jealous telling about Kaji having sex with Asuka. Urara walks into a playing room and sees Kaji and Asuka having sex. Urara screams in surprise and despair, in front of them she stutters back into a wall. With a misterious smile she finally breaks and murmurs " Be… lie… ve…".

Based on the erotic game by Syrup: Honey Sweet. Segawa Akira is a high school student who is one day caught masturbating by his older sister, Yuu, who then proceeds to help him to relieve his needs. Later that day, Akira talks to Yuu, prompting her to decide to consult him with a physician, Tachibana Kimiko. Kimiko explains that Akira has an illness that can only be cured by having sex with him. Thus starts the new sex-filled life of Akira with his sister, doctor, and childhood friend Takamori Sana.

Based on the erotic game by Softhouse-seal Grandee. In the near future, mankind is on the brink of extinction owing to a drastic decline in the birth rate of males. To counter the declining overall birth rate, the country has introduced a new law and the Free Sex Licence. This Licence can be presented to any woman, anytime, anywhere, and that woman is legally bound to have sex with its bearer. One night, Takumi receives one such Free Sex Licence and his life changes drastically. He has sex with Sara, a genius who’s also curious about sex, and with Misaki, elder sister of his childhood friend Rin. Rin, who’s secretly in love with Takumi, is extremely agitated by these occurrences. However, when Takumi inadvertently displays the licence in the classroom, Rin’s first time is done in public…

Based on the erotic game by Guilty eX. Tanabe Yoshiyuki disappeared and it was discovered he was bullied in school. Nagisa, Yoshiyuki’s cousin, decided to dress up as a male in order to find out what happened to him and to exact revenge on those responsible for the bullying.

Based on the erotic game by Syrup: Honey Sweet. Segawa Akira is a high school student who is one day caught masturbating by his older sister, Yuu, who then proceeds to help him to relieve his needs. Later that day, Akira talks to Yuu, prompting her to decide to consult him with a physician, Tachibana Kimiko. Kimiko explains that Akira has an illness that can only be cured by having sex with him. Thus starts the new sex-filled life of Akira with his sister, doctor, and childhood friend Takamori Sana.

Morino Yuuko is an ordinary teacher at first sight, who owns a mansion on a hill. But she is in fact a witch. Her secret is known by Tachibana Ichirou, one of her pupils. One day he decides to pay her a visit to see her magic…

It is now the year 2010. The reprehensible and secret brotherhood known as the Last Molester Train has been driven underground once again, its three year reign of sexual predation extinguished under the militant ultra-feminist organization known as Raven Guard. However all is not yet lost. The Last Molester Train continued to search for a savior who could restore their patriarchy to glory, and at long last that man has been found. Revered under the pseudonym of Zin, this legendary molester defied the Raven Guard and defiled many a lovely flower under their watch. A single careless mistake is all it took catch him… but the brotherhood will not let a comrade-in-arms fall so easily.

Jun and his teacher Kurose Katsuko are in love with each other. One day, Shinohara Kazuya sees them together in a classroom and blackmails Katsuko to have sex with him.

Futoshi Satō, a high school teacher, is ugly and despised by students and female teachers alike. A powerful device falls in his hands—a mysterious cell phone with which he can induce an hypnotic state in whomever he takes a photo of. During that state he can modify the subject’s will and body response the way he likes, so it is fun time for this teacher, and he aims as high as he can—the head teacher and the members of the student council.

Kouta is the school’s idol loved by all—his teacher and his fellow students. Well, at least the one teacher and three students we see—who are all girls. Actually, they don’t actually “love” him all that much; they just want to screw his brain out.

Six people find themselves trapped in a mysterious futuristic complex, forced to dance to the tune of a sadistic computer game, where failure to follow the game rules results in death. Characters include our protanist, Takato Keisuke, his childhood friend Hokari Kanae, classmate Ando Miyako, underclassmate Mikaba Rika, English teacher Aoi Natsuki, same year Byakuya Rinne, and classmate Manaka Nemu. While still confused about their unusual situation, a mysterious voice suddenly speaks to them: “A game has now started.” In order to escape the room, Keisuke is the “unlocker” and one heroine the “keyhole”. With an assigned act, he must “use the key”. After hearing the unreasonable and immoral requirements to win, Miyako gets pissed and snaps on the mysterious voice. Suddenly the lights go out, the girls scream, then lights return reilluminating the room to show Miyako bound to a grotesque torture device. “Anyone who quits the game will die.” Her screaming begins in tandem with the electrical current. With eyes wide open in fear, she pisses and shits herself. Everyone else starts freaking out. However, Keisuke seemed to be getting aroused by Miyako’s appearance. That was his secret, his urge to assault and humiliate girls. However, Nemu could see right through him and knew. Nemu takes advantage, forcing the protagonist to submit to her as she brings her lips up to his ear: “This is a contract kiss.” Keisuke was surprised by Nemu’s behavior but he wants to protect Kanae and decides for the sake of escaping, he will violate the others. Can Keisuke escape the white rooms and return to his normal life? Or will he hold back his own dark urges?

Morino Yuuko is an ordinary teacher at first sight, who owns a mansion on a hill. But she is in fact a witch. Her secret is known by Tachibana Ichirou, one of her pupils. One day he decides to pay her a visit to see her magic…

Based on a doujin game by CourregesA. Sakuraya Academy is a high-class girls’ school. Its stringent selection process is designed to ensure that they take in only the daughters of the most social elite. Kannari Masayoshi is a 4th-year teacher at Sakuraya. Due to his kind and cool nature, all the students fawn over him. However, this is only his outward nature. He makes use of his popularity to form affairs with many of his students. Now, his sights are set on a new girl, Kirihara Yukino.

Satsuki and Shizuka, both popular magazine models, transfer to a new school. Yamada is a chubby teacher who is ordered to act as their personal attendant. In this position, he is frequently insulted by the arrogant Shizuka. However, his revenge is nigh…

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.

Kouta is the school’s idol loved by all—his teacher and his fellow students. Well, at least the one teacher and three students we see—who are all girls. Actually, they don’t actually “love” him all that much; they just want to screw his brain out.

After the death of his grandfather, Yoshisuzu Shougo moves into the mansion left to him. He lives there with Otosumi Youko, the maid. Shougo often has sex with Youko, but, while in the half asleep state following orgasm, he always sees a vision of a beautiful girl. The girl’s name is Reiko, whose picture adorns a wall within the mansion.

Based on a game by Grand Cru. Kirisaki Rie is a teacher who has fallen in love with one of her students. Unable to smother the passion burning within, they frequently seek each other. Sometimes, they have sex in the staffroom. At other times, they meet in a classroom.