Based on the game by Valkyria.
Dragundaala, a country belonging to the descendants of dragons, has been conquered by an army of demons. With the king and queen captured by the demon army general, Ginyol, princess Catue attempts to rescue them, but gets caught. All is not lost, however, as Ginyol agrees to free the king and queen, and withdraw his army entirely if princess Catue can endure his sexual acts of depravity for 7 days.

Based on the adult game by Marine.
Kutaro works hard everyday at a TV station as an assistant director. However, his life changes when he agrees to take part in a new TV program with Aya — who is a famous TV presenter; but she constantly mocks him.
One day, Kutaro plots revenge by secretly adding his sperm into Aya’s coffee. She drinks it, not knowing, then after work she asked him: “What did you add to my coffee? It had a different taste.” He was embarrassed but admits it.
Surprisingly Aya responded with: “Today I felt great. I did not think such a coffee would help…”. Thus begins Kutaro’s life with a beautiful TV presenter.

The hero is an “ordinary student,” Tsukui Shinichi, now in his senior year. A long-lost childhood friend, Ayase Aoi, moves in next-door and transfers into his school. Shinichi can’t quite remember Aoi, which upsets her quite a bit. Her good looks attract the attention of Shinichi’s comic sidekick, Yamashita Satoshi, and the school playboy, Kanzaki Kotoro. While Shinichi and Aoi spar over a potential relationship, Shinichi crosses paths with and then beds other students, including a clumsy genki girl, Fujiro Mami; an aggressive vamp, Ebina Mika; and the president of the Flower Arrangement Club, Hayama Reiko, before finally ending up in the arms of his destined True Love.

3DCG video by skamotoJ.
Deeds of a VP and sow behind bars.

Based on the erotic manga by Akazawa Red.

GUIL-TV station is a nest for a huge underground prostitution organization. Its directors feel the need to increase sex appeal of newscasters and that’s why they use casters as sex slaves.

Based on the erotic manga by Fan no Hitori.
Reika Shichijo was a student at the top of her class, until one day she suddenly became a dropout. Now she is responsible for her classmate Niimi-kun’s sexual pleasure to help him “study” better.
In this world “Dropouts”, those who have failed to be admitted into university, are forcefully made to work. Especially beautiful students are obligated to pursue sexual labour AKA become sexual servants to the rest of society.
Reika becomes the sex slave of one of her former classmates, Niimi-kun. She is now tasked with relieving his sexual tension, so he can study better. During their time in school Niimi-kun will have to adapt to his senpai becoming his new “study” partner, find out why and how she became a dropout and deal with the jealousy of his peers, especially Reika’s ex-boyfriend, Shiroshima.

Based on the manga by Osuzu Akiomi.
Episode 3
Is the story of Makoto and Kouichi.