A couple become unwilling accomplices in sex and murder.

Haruki spends most of his time with friends and fellow classmates Airi and Ayana. All seems well, that is until Airi and Ayana form separate clubs, the Mechanical Science Club and the Chemical Science Club. The two vie for Haruki's attention and hilarious chaos usually follows all attempts to make him join.

Based on the same name adult manga by Shiomaneki. Ryouichi goes to his friend Yuu's place to play video games, like they do sometimes. It turns out that Yuu's aunt Yui has come to visit, and she joins them. But it soon becomes clear that it's not a video game she wants to play with Ryouichi...

The peaceful country of Istoare is invaded by vicious orcs. To preserve her people, Queen Ilena agrees to marry the king of the invaders. This OVA is based on a doujin game by Orcsoft.

Shion, who did not develop magical power even after becoming an adult, was entrusted to a young couple engaged in magic research for treatment. After a certain incident, his magical power finally manifested, but he couldn't control it, so Rui, a healer, decided to take care of him again. However, in order to be able to handle magic as a full-fledged person, it was necessary to become an adult in a sexual sense. Her married wife, Rui, cannot let Shion graduate from being a virgin, so she will proceed with the preparations on the condition that she can do it, but...

Based on the erotic game by Waffle Arahama Yuu has 5 sex-friends. One day, his easygoing sex-life reaches a precipice. One of his partners, Shimizu Misako, who is also a co-worker at his company, had been sleeping with him on the understanding that they would marry. However, he only considered her a sex-friend, and even revealed the existence of the other 4. Incensed, she has him gather the other 4 together in his apartment Shimizu discovers that Arahama has surrounded himself in the company of many beauties of differing personalities: Yanagi Ryouko who runs a cafe near Arahama's apartment; Hoshino Kotori, a schoolgirl acquaintance; Endou Makiko, who manages a large company; and Kamishima Aina who he met on an online dating site Shimizu demands that Arahama stops having casual sex and marries someone. but the situation gets heated and confusing until Arahama somehow ends up proposing to all of them Arahama then visits all of them individually to try to withdraw his proposal

After a string of failed jobs, Keiichi Oyamada lands work at a small manga cafe. Things seem to be looking up from day one. His best friend is his manager and he gets to work alongside the beautiful Rei Suzukawa. Also, his cute childhood friend, Kururu Hiiragi, is a regular—and she's all grown up! So why couldn't Keiichi hold down a job before? Due to a series of bizarre coincidences, he always seems to end up having sex with every single female coworker! Although he hopes to finally end this deadly cycle, Keiichi will soon find out that bad habits die hard.

A second year high school student and a Kendo club member, Tamao Tsukamu, admires his senpai, the club captain, Kiritani Konome. One fateful day, she asks him for a favor involving making special kinds of photos for the student graduation album.

Based on a game by Bishop. Ishizuka Kengo has started working as a teacher at the school he graduated from and has been given the job of taking care of the old school building until it gets demolished. While for others that task may have been troublesome for him it is an opportunity to satisfy his dark desires, and he wastes no time doing so... Ishizuka's first target is Morimiya Saki, a student at the school, but soon he also targets Saki's friend Arisa, Saki's mother Rie, and another teacher at the school—Mashima Mikako. What awaits these four at the hands of the sadistic teacher?

Ashifuji Satoshi is hired as the caretaker of Kissuisou dormitory, which is home to three female occupants: cheerful coach Esumi Mei, surly guard Ogata Saki, and perverted mangaka Umi Rurika. However, almost immediately after landing the job, Satoshi is contacted by Ibaraki, the house spirit of Kissuisou. Ibaraki's power is drawn from seeing people copulate. Thus in order to restore her strength, the spirit orders Satoshi to offer his sperm to each woman in the house and Satoshi begins this peculiar task with her assistance.

Ryouichi goes to his friend Yuu's place to play video games, like they do sometimes. It turns out that Yuu's aunt Yui has come to visit, and she joins them. But it soon becomes clear that it's not a video game she wants to play with Ryouichi...