An adaptation of the game of the same name.

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.

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.

The Man-Killer Virus: a lethal disease that has eradicated 99.9% of the world's male population. Mizuhara Reito has been in cryogenic sleep for the past five years, leaving behind Tachibana Erisa, the girl of his dreams. When Reito awakens from the deep freeze, he emerges into a sex-crazed new world where he himself is the planet's most precious resource. Reito and four other male studs are given lives of luxury and one simple mission: repopulate the world by impregnating as many women as possible! All Reito wants, however, is to find his beloved Erisa who went missing three years ago. Can Reito resist temptation and find his one true love?

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 the adult manga by Yasui Riosuke.

A story about a school where a sadistic boy and a masochist girl have lots of sex.

Based on a game by Bishop.

Toudou Miyuki and Sanada Eiji are teachers in the same school and lovers. They had decided that they would preserve their chastity until they are married. However, Miyuki is assaulted and loses her virginity to Takuya, Eiji's step-brother. Furthermore, it doesn't stop there as Takuya turns his attention on the other female teachers one after the other.

As she's been taken prisoner by the main character and her childhood friend, Eric, the battle princess Lotte has ended up training to be a slave maid princess made in order to prolong her life. Slave Maids are specially trained maids which exist for the pleasure of the noblemen. While providing sexual services, they also live by working as bodyguards who put their lives on the line for the protection of their masters, making them very valuable to both royalty and noblemen. The battle princess Lotte loses her virginity and must endure dirty and degrading training in order to turn her whole body into a sex toy.

Taken prisoner by the main character, battle princess Lotte has ended training to be a slave made in order to prolong her life. Slave maids are specially trained maids traded among the noblemen. While providing sexual services, they also live by working as guards who put their lives on the line for the protection of their masters, making them very valued to both royalty and noblemen. The battle princess loses her virginity and has to endure dirty and degrading training in order to turn her whole body into a sex toy.

The Man-Killer Virus: a lethal disease that has eradicated 99.9% of the world's male population. Mizuhara Reito has been in cryogenic sleep for the past five years, leaving behind Tachibana Erisa, the girl of his dreams. When Reito awakens from the deep freeze, he emerges into a sex-crazed new world where he himself is the planet's most precious resource. Reito and four other male studs are given lives of luxury and one simple mission: repopulate the world by impregnating as many women as possible! All Reito wants, however, is to find his beloved Erisa who went missing three years ago. Can Reito resist temptation and find his one true love?

Kousuke is a high school student with a big taste for the fairer sex. Not only that, he has a way with words that makes people help themselves. With a childhood crush and abusive teachers the hilarity starts.

Valkyrie Choukyou Semen Tank no Ikusa Otome 10-nin Shimai

Based on "Valkyrie Chōkyō Semen Tank no Ikusa Otome 10-nin Shimai" (erotic game) by MBS Truth.

The Valkyrie are charged with maintaining peace between the realm of gods, the realm of humans and the realm of the dead. The peace has started to breakdown and one of the Valkyrie has been possessed by a vengeful force.

After the disappearance of her sister and finding out she had joined a suspicious enlightenment group seminar, Riko enlisted herself into the course to find her but the only way to reach the same course as her was to rank up and the only way to do so was to help others release... that being through sex.

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 horrible murder has been committed on the grounds of Nankai Academy. Professor Yuko, one of the school's most popular teachers, died when she was pushed off of the roof of one of the school's buildings. Her death has left her students with feelings of confusion, pain, and above all else... anger. Four of her male students, Masayoshi, Daisuke, Mitsuru and Shinya, are determined to uncover the truth. They soon discover an important clue: Professor Yuko's planner had been marked on the very night she was killed... marked with the names of seven girls.

With this evidence, the boys begin their investigations... and they'll use any method required in order to find the murderer. Through rape, manipulation and torture, they uncover important details, but piecing the puzzle together won't be easy. And the longer their search draws on, the more they feel themselves being overtaken by their own dark desires... Will they ever find out the truth behind Yuko's death?

On the day Princess Elfina of Fiel was to marry Prince Kwan, the Valdland army, led by Prince Viceard Balbacil attacked both Kwan's party and Firan castle.

In the resulting Valdland victory, Kwan is seriously injured and Elfina, along with all of the other women of Fiel, are forced into sexual subjugation. Viceard's plans are turned upside down, however, by the arrival of his first-love turned step-mother Marna, who brings Viceard news that his father plans to frame and kill him.

With the moderating force of Marna's presence on him, Elfina is exposed to Viceard's softer side, as the king's arrival and Kwan's escape promise to shake the occupied kingdom of Fiel.

When half-naked shrine maiden Nonoa suddenly disappears, her childhood friend Yamato and an angel, Sera are thrown into a panic! Sera finds it strange that Filika, a devil, disappeared at exactly the same time.

Equipping an angel's halo and Nonoa's panties, Yamato unlocks his hidden potential, and his penis grows in size. He spins it rapidly to achieve propelled flight, and he and Sera take off in hot pursuit of the naturally flight-capable Filika.

Meanwhile, Filika abducts Monika and returns to her hidden base of operations. She then uses her sex slaves, once men but now creatures only of lust, to begin a questionable ritual.

Monika milks her slaves for their semen. She repeatedly engages them in rough, nigh-beast-like sex and naturally succumbs to the overwhelming pleasure. She is repeatedly creampied, and as a result her abdomen swells from the sheer volume of semen inside her.

Meanwhile, completely oblivious, Nonoa is taking a shower. Belly bulging, Filika sneaks up on Nonoa and uses her to complete the ritual.

A high school student has feelings for his teacher and decides to write her a love letter. The teacher rips the letter into pieces in front of the class, humiliating him. Dejected, the boy visits the student nurse to make some sense of the situation. The nurse tries to console him by giving him some pills, and proceeds to fuck his brains out – as they all do. The teacher walks in on this and shit hits the fan. Potential threesome? Or murder mystery?

Source: hentaihaven.org

Yuuichi Mamiya uses a penlight’s powerful hypnotic properties on his loving mother-in-law and younger sisters-in-law, amplifying their sexual desire. However news of the things that happen in the Mamiya household starts making trouble in the neighborhood. The president of the neighborhood association comes to talk with the Mamiyas, but she soon falls to Yuuichi’s hypnosis. Rumors about the Mamiya household spread throughout town, and Yuuichi is forced to take drastic measures.

Mochizuki Tomoya is a guy that lives on his own with only a day job at a convenience store keeping him afloat. While he really likes eroge, he can't draw, isn't much of a writer or composer, and doesn't know much about business. Still, his dream is to get a job at an eroge studio in hopes of creating what he loves, eroge.

Tomoya's luck takes a turn for the better when he sees a help wanted ad for the local studio Flower, and after a meeting with the company president (who to his surprise looks like an elementary school kid), manages to get a job as administrator of the company's website. Tomoya's glee at being part of the eroge industry is short-lived, as he soon learns that Flower is on the chopping block due to their first title being a massive failure.

After playing through Flower's first title, Tomoya realizes that his co-workers don't know anything about eroge, lacking the insight and understanding needed to make a good game. After some nudging from the president of Flower's parent company and some soul searching of his own, our protagonist takes it upon himself to save Flower by teaching the four girls on staff the ins and outs of what makes an eroge good. The story thus focuses on Tomoya's role as a psuedo-consultant while getting to know the four heroines of the story as the player is given an interesting look at the world of eroge development.

Based on a doujin game by Pin-Point.

Aya, a waitress at a cosplay cafe, receives an E-mail asking her to go to an anime convention, for which she'll be paid as much as she wants, but with one condition: to obey all the males' orders. She ends up going out of curiosity, but the normal perversity among the otaku and her own dirty thoughts turn the photo session into an exhibitionism session.