An adaptation of the game of the same name.

After answering the summons of Momoka, the school nurse, the protagonist is forced to engage in various sexual acts with her.

Later, the protagonist accidentally witnesses Momoka's younger sister, Maron, masturbating. He is discovered and Maron counterattacks by stripping him and giving hand and foot jobs. One thing leads to another and he ends up taking her virginity.

Finally, the three of them go to a public bathhouse and end up in a threesome play.

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 erotic game by Lune TeamBitters.

Nanami is happily married. While using a public bathroom, she is caught on camera by the building manager, Kamata. Using the video footage as blackmail, Kamata now has complete control over her, and Nanami soon finds herself enjoying the sexual acts she is being forced into.

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.

A female medical investigator is developing a drug that can potence the posibility of an impotent female or male to procreate. But the true reason is that she is an hermaphrodite (dual sex) but her both sexual organs are impotent an unable to procreate. So she develops that drug, making two version, the blue one for males and the red for females. But as any new medicine she must try it out first, there is when her nurse assistants became useful and then she must analyse each reaction in each subject, including herself, expecting some interesting outcomes.

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.

Nonoka goes out of her way to make a written confession to the older brother of one of her classmates, but he doesn't even read the letters. This prompts her to stop by in person, and express her "hate" for him through various antics...

Once, Foster was a young revolutionary. His days were filled money and wine, while his nights were filled with the most beautiful women in Europe. Now, fallen and disgraced, Foster is taken in by a railroad tycoon named Dred Burton. This powerful businessman has some bitter connection to Foster's past, but he still gives the young man a new life. Training high class prostitutes for Mr. Dread, Foster tries to piece together his shattered past and lost love. One by one, girls are added to his household. The clumsy Leese, the eager Aya, the innocent Ren, and the dignified Clair all must submit to Foster's training, and serve Dred's strange ambitions.

The story begins with a pair of young lovers, the busty Mizuho-chan, and the well endowed Hiro-kun. One night Hiro suggests that Mizuho should try swimming to get in shape. He even offers to coach her after hours at the pool where he works since she can't swim very well. Mizuho's new workout plan turns out to be much more exciting than expected... Meanwhile Takuya-kun finds himself in a compromising situation with his clumsy but beautiful neighbor Sayaka-chan... Each episode features couples enjoying various sexual escapades involving plenty of water, wet bodies, & extremely revealing mizugi (swimsuits).

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 staff members of a certain hentai producing company get personally involved in their work. Perhaps a little too involved as some some male staffers begin to cross the line between fiction and reality.

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...

Based on the adult game by Syrup: Many Milk.

Demons are attacking earth, releasing a field that drives men to wild lust and absorbing the carnal energy that results in order to replenish their strength. Yuuri is chosen by Suzune-sensei to become an Angel Goddess and fight these creatures of darkness. When Suzune-sensei deems Yuuri capable enough to fight on her own, however, things begin to go horribly wrong. The demons have a new creature, capable of besting even an Angel Goddess. But the possessed men aren't the only ones who want her, and her own gym teacher turns out to be a bigger threat and pervert than she could have dreamed. But she's not the only one who's been compromised...!

OVA produced by the manga publisher Toranoana.

Takuya, the nerdy kind of guy who works at a convenience store and is into cosplay idols, has led a pretty average life up till now. So according to the inverse correlation between nerdiness and chick magnetism, it's time for his world to be turned upside down. After a package switcheroo with a mysterious man, Takuya finds himself with a sexy android named Seri. Able to assume any shape and determined to please her new master, she transforms into multiple characters right out of a fan boy's wildest dreams.

Based on the erotic game by Lune.

Katsuma is just a go-boy of his female bosses... Whenever he has a battle against Silverstar, a hero, he loses...

One day, when he has another battle against Silverstar, his bosses suddenly trap Katsuma and Silverstar. When he regains his consciousness, he finds himself being taken care of by Maria, another Silverstar. Katsuma is attracted to her kindness..., no, he just sleeps with her... However, he acquires a special power by sleeping with her...!

He soon decides to take revenge on his bosses...

Yuko is trying to escape from an abusive ex-boyfriend, Taki. After a horrible incident, Yuko seeks out Ayano, her best friend and lover. Ayano invites Yuko to join her in the shower, where she uses her tongue to comfort both Yuko's mind and luscious body... Ayano is starting a new research project, and as part of her project she possesses an ancient scroll, a mummified body part, and a dagger. Yuko offers to help her with her research by doing a biological analysis on the mummified part. Several days later, Yuko endures another traumatic encounter with Taki. After forcing himself on Yuko, he commits an unimaginable act, leading to the resurrection of the Lust-demon!!! This time, the demon will not be easily subdued... a story filled with horror and mystery, you'll be sure to enjoy this visual feast filled with red-hot sex and nightmarish imagery...

The Thunder Troupe's Leader, Lighteus. Although her petite frame and her furry ears and tail make her seem cute, she is actually an experienced adult woman, one of the long-lived beastmen. The Thunder Troupe, led by her, pursed swordfighting as a form of entertainment instead of just killing. One day, She found Liguceun at the slave market. She realizes him to be "He Who Brings About Wisdom," the one whom exemplified what she aimed to accomplish. Faced by a man who embodied her goals, she couldn't help but be in heat. "Don't underestimate my veteran pussy, I'll take your cock like it's nothing." Her eyes already glazed over, she takes Liguceun's brutishly large cock into her small pussy, evoking even a sense of taboo. The Troupe's Idol, Duranta, unknowingly wanders around shaking her large breasts and hips, looking for Liguceun, not knowing that he was pushing the cock that made her moan deep into Lighteus' tight little body.

Mikio returns to his hometown for the first time in half a year. The first thing he sees is the traditional Japanese onsen inn managed by Yukino Chitose, childhood friend and one-time lover. Despite the passing of half a year, Chitose still possessed a girlish appearance. However, the traditional clothes that she wears brings out a mature and beautiful feel about her. That night, upon conclusion of his business, he goes in search of Chitose. Hearing her voice, he follows it and comes to an outdoor bath. Peeking through a gap in the bamboo fence, he is stunned to see her with another man...