Fubuki Momose, an athletic high school girl, is in love with the seemingly apathetic Shinichi Kawahara. Unbeknownst to her, Shinichi shares the same sentiment but hesitates to convey his true emotions. The state of their relationship changes dramatically when an earthquake causes their school building to collapse—trapping four students inside. Confined alongside Fubuki and Shinichi are Takaaki Tsumura, Shinichi’s promiscuous best friend, and the younger and unfamiliar Mizuha Senju, who also harbors feelings for Shinichi.

Determined to find a way out, the four divide into two pairs to search for an exit. Fubuki soon confesses her love to Shinichi, which he immediately reciprocates. Although their romance seemed destined to blossom, Fubuki’s heart is thrown into disarray after Takaaki accuses Shinichi of sexually assaulting Mizuha. As her suspicion only continues to grow, Fubuki finds herself being manipulated by Takaaki while Shinichi remains on the sidelines.

Morimoto Leona and Otokawa Saori are newly arrived boarding students at St. Alcadia Academy. Morimoto Leona desires to subjugate every person within the school, severely punishing those who are of no use to her. Even the teachers are not spared. Fellow boarders Yuuki, Ruri and Maiko, who are oblivious of the situation, fall prey to the limitless sexual desires of the male students.

He’s just a random loser otaku… why did his thing have to feel so… GOOD!? Kageura, an otaku with glasses, is tricked into joining a group of gyaru at a physical education warehouse. One of them, Yui, decides to play a game with him, but she loses. She then decides to deprive him of his virginity in front of everyone. Thus, since this incident Yui constantly feels a strong excitement deep inside her.

A lone tutor in a mansion in the mountains, with only beautiful women surrounding him… there’s only really one possible outcome.

Terada Akito found himself in an unexpected situation, to be a sperm donor. The proposition came out of the blue, and at first, he thought it was shady business. But after thinking it over, he decided to accept, but with one condition – he would only donate through sexual intercourse instead of the traditional method, masturbation. He expected his demand to be refused, but to his surprise, they gladly accepted. Little did Terada know, his sperm held a unique quality that set it apart from other men. Once he signed the contract, he was given his first task – to collect his sperm in a container. Feeling betrayed, he turned to his employee, Sudo, asking for help to get aroused. He didn’t expect her to agree, but she willingly offered her assistance. And so, he embarked on his first work as a cum donor, where he encountered a tsundere-like housewife.

Yukiko is a young wife who is feeling lonely and unsatisfied. Her husband Koichi won’t satisfy her needs, and in fact they sleep on separate beds. To add to her frustration Yukiko finds some pictures on her husband’s cell phone – pictures of an unknown naked woman; also one night she sees her two children – who are not related by blood – together in bed.

Yukiko spends her time at home trying to satisfy her needs on her own. Until one day the father of her husband comes to visit and sees her in compromising situation. That’s when things in her family start to change…

It began centuries ago, when the Miroku ninja clan made a deal with the forces of the underworld, leading to centuries of struggle between rival clans. And now, after more than 600 years of peace, the denizens of the underworld are about to get a new boss. Now, 18-year-old ninja in training Midou Miko is entrusted with the family business: making sure that sex-starved demons stay out of humanity’s way! What does a ninja do? Fight, with every battle skill and sexual sorcery she can muster!

Kazuo Sugimoto is your typical young salaryman until he is wrongfully accused of molesting a girl on a train and forced to confess. After finding and confronting the true culprit, Kazuo becomes the man’s 500th apprentice in Chikan-do: The Way of the Groper. Follow Kazuo’s saga as he learns strategies such as The Berlin Wall, The Battle of Odawara and works to master his own technique The Gold Finger. Chikan-do: It will change the way you think.