An adaptation of the game of the same name.

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.

One fateful day, she asks him for a favor involving making special kinds of photos for the student graduation album.

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...

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

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.

Based on the game by Guilty.

Miu and her family of four women are well-known in the media for being aspiring young celebrities. Her mother, Sayoko, is a famous fashion designer and has scored a job for the family to shoot a TV production; a rare opportunity for the family to be together and enjoy themselves. The girls travel to a small, isolated village in late August and the filming begins. Little do Miu and her family know however, the entire production is a scheme. This is the time for a local festival and they happened to unwillingly volunteer to be a key figure for this festival. One by one, the girls are subjected to the traditions of the festival, experiencing first-hand just how serious it is.

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...!

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.

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.

The story centers on high school student Kaga Michio. Wandering aimlessly through life and the Internet, he finds himself transported from a shady website to a fantasy world — reborn as a strong man who can use "cheat" powers. He uses his powers to become an adventurer, earn money, and get the right to claim girls that have idol-level beauty to form his very own harem.

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.

This explicit anime takes place at an unusual school in which sex between students and, above all, with teachers, seems to be the norm rather than the exception. The series focuses on Yuichiro, a formerly good-natured student who has turned twisted since being falsely accused of rape at a previous school. At his new school, he encounters a group of perverted, abusive bullies, some of their victims, and any number of extremely attractive and libidinous young instructors.

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.