Based on the eroge by Marine. 
Makoto is an ordinary university student who often visits a nearby swimming pool to swim and watch women in swimsuits. One day, he is asked to teach Marina how to swim. It seems she can't swim at all. While he touches her body, he gets an erection. Marina notices it, and gives him a blowjob. When he touches her vagina, she cries out in pleasure and achieves female ejaculation. His unknown erotic ability comes into bloom! Make all women&mdash;from a university student to a married woman&mdash;ejaculate with your fingers! 
(Source: ErogeShop)

Based on the erotic game by Lune. 
 
A widow and her daughter own a small restaurant and a young man helps them in the kitchen. The young lady had always loved him and finally confess her love to him and both become lovers but one day she realizes that her mother is lonely and sad because of her late husband so she comes up with a plan where the three of them can be happy together. 
 
(Source: Anime News Network)

The story begins with a very sexually active female lead imagining all possibly risky situations that she would have or could have had with her date if he didn't leave for the evening.

Based on the eroge "Shoujo Senki Soul Eater" by Lune.

Based on the game by Lune. 
 
Telling about the life of the Kunoichi ninja. 
 
(Source: Nekopoi and Has Been Translated)

Based on an erotic game with the same name by Lune. 
Ryusuke is about to be kidnapped by Kimaira, but his older sister, Misa, saves him in exchange of herself. He decides to save Misa, and looks for his company, and meets Mikoto. She was also attacked by Kimaira and lost her family. At this very moment, Byakko appears and attacks Mikoto. Mikoto transforms herself into "Soul Eater" and has a battle against it. But Mikoto loses and is raped. Ryusuke is depressed to see what is happening in front of him, but Mikoto already decides to take a revenge... 
(Source: VNDB)

Based on the erotic game by Lune. 
 
Honami's husband, an older man named Satoshi, died in their honeymoon. Honami's dream for a happy family with him is crushed but that's not all the trouble she has to face. Satoshi's sister, Kayoko, sees Honami as responsible for his death and believes that she killed him so she can inherit his fortune. Now she plans on taking revenge and driving Honami away. Manabu, who was raised by Kayoko now finds himself pushed to help her on her revenge but Honami is still dedicated on fulfilling Satoshi's family dream with what is left from his family even if she has to take Kayoko's hate. 
 
Note: Episode 2, Birei Okami Mie, has been separated into a different entry as a sequel.

Based on the erotic game by Lune. 
 
Shinji is a high school student. He loves Mayuri, his classmate. One day, a sick-room teacher, Ryoko, gives him a pendant. It seems people can have a good dream if they sleep with it. On that night, he goes to bed, holding the pendant.... A while later, when he wakes up, he finds himself being in Mayuri's room. Mayuri is asleep in the bed.... He gets sexually excited and has sex with her...! However, nothing is changed on the next day.... He is relieved and randomly has sex with other girls.... What's the secret of the pendant? What will happen to him in the end...? 
 
(Source: ErogeShop)

Based on the erotic game by UnderMoon. 
 
Masaya is a university student, who works as a home tutor part-time. One day, he receives a parcel. That is a notebook. He frowns when he reads a letter, which is also in the parcel. It says, "If you write a girl's name in the notebook, you'll be able to control her as you like." He thinks it is ridiculous at first, but he decides to give it a try. The name he writes is Yumi, his student.... As a result, it comes true, and he shags with her. "This notebook is proved to be real. I can now have fun with it...." 
 
(Source: ErogeShop)

The Oraga Stone is the source of energy to activate cyborgs, through combination of the train, to fight for evil or good. The only way to supply the energy to the stone is through sexual stimulation of women to orgasm. The M-77 Express was stolen by a professor who had betrayed the good guys to do his evil desires. The only way to stop him... ... the Sex Desire Express Zetsurinou 
 
(Source: Anime News Network)

Based on the manga by Sanbun Kyouden. Two separate stories about sons witnessing their mothers gradually being taken over by lust and pleasure.

This three episode hentai centers around three love stories. Thief: A young woman wed to a much older man, he couldn't unsatisf her because he finished too fast, one day he leaves to sell some goods, and a Theif enters. 
Female Pervert Warrior: During the feudal war era, one small country collapsed. While most of the royal family and relatives were killed, the princess and Shingo, her vassal, escaped. But a harsh fate was waiting for the princess. 
Disgraced Bride: Once upon a time, a clan lord was betrothed to and fell in love with a princess. Her beauty made him speechless, and she always looked so happy. However, the lord's ''affection'' for princess Chiho became stronger every day, and she lives like a bird in a cage, constantly receiving the lord's hard love.
 
(Source: Anime News Network)

Contains three sexy elevator stories! 
Illusional Elevator 
Rikako Sawada was there for an interview, not knowing she was getting more! Told to change into an elevator girl's uniform, she waited in the elevator as a man stepped in. Right after the door closed, the man started molesting Rikako! What will happen to her? Will she get the job? 
Wife in the Box 
The elevator stops suddenly. Trapped inside are a housewife and a salary-man. The man had pictured her naked body, and imagined having her. Surprised at first, the housewife would gradually scream in delight. Will the two be all right in the closed elevator...? 
Pervert Brassiere 
When the cursed bra is worn, the wearer would be molested and raped; however, the curious Yoko tradeed it for her own bra, not knowing what would happen. Inside the company elevator on her way home, the molesting and rape begin. Is it the magic power of the curse or the power of lewdness and lust? 
(Source: RightStuf)

Schoolzone