Hikari is an ordinary school student. One day she meets Buccha the talking cat, who says that she’s Venus Pink, warrior of the goddess Aphrodite. Along with four other girls she has to fight with perverted Necros and four lords of Inma Empire, who want to revive the god of lust, Apollo, and turn the world into a sex pit.

It’s time for the local summer festival and Kentarou is accompanying Shizue, who has come to visit after being away for a few years. During the festival Kentarou leaves Shizue alone for a bit, and when he finds her again he sees a shocking scene…
Later, Shizue goes to a local photo studio to pick up some photos from the summer festival, and decides to do a bit of modeling while there. Before long Kentarou also joins…
(Source: AniDB)

On a trip back to his hometown, a chance encounter with a frustrated and scorned Aunt of his, turned what was going to be a boring trip into a VERY lewd adventure…

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. Besides herself, the others are: Yanagi Ryouko who runs a cafe near Arahama’s apartment; Hoshino Kotori, a schoolgirl of his acquaintance; Endou Makiko, who manages a large company; and Kamishima Aina whom he met on an on-line dating site.
Shimizu demands that Arahama ceases having casual relations and marries someone. However, the situation get heated and confusing until Arahama somehow ends up proposing to all of them.
In the days that follow, Arahama visits each of them individually in an effort to withdraw his marriage proposal.

Sanae is the wife that anyone would be jealous of. She is young, very sexy and gentle.
However, after 4 years of marriage, her husband worries if is he good enough for his wife. For a long time he is not able to have a sex with Sanae, but she never complained about it. He starts to think of way to make his dear wife happy and finally asks for his friend to have a sex with his wife. While he’s secretly watching his wife with other man, he starts to feel incredibly stimulated…

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.

Based on the game by Buruge on Demand (label of Blue Gale).
The story revolves around Masaru and his friend Ijuuin, and their sexually oriented exploits with 3 sisters, Kaede, Nanami, and Kurumi.. whom all work and manage a Cafe together. Kaede owns the cafe, which is also worked by her two sisters Nanami and Kurumi. Masaru has been offered a part-time job by Kaede, which sets him to work alongside the two other girls.
When Kaede ends up needing to be away from the Cafe for a month on an internship, she leaves Masaru in charge of the Cafe, putting an extension on his part-time job.. and granting him the extra responsibility of ‘looking after’ the other girls in Kaede’s absence.
Having his alone time with Nanami and Kurumi leads to some unexpected events.
Kurumi first confesses her love for Masaru, and he makes sure to take full advantage of the situation.. but then wouldn’t you know it? Nanami seems to be falling for the male protagonist as well. The sisters find out about Masaru’s two-timing efforts (like he cares), and they naturally become jealous of each other. When Kaede returns early from her internship, she accidentally happens across the others indulged within their expressions of affection for each other, which gives her and Ijuujin perfect opportunity to act on certain interests as well.
Too bad for him that Masaru will still end up getting all the love all to himself from all three of the sisters in the end.

Based on the game by Black Lilith.
People moved to space, public order and security was maintained by the space federal managed by various species including humans. The lead character Iris and her partner Mei Ling are the ace pilots of the 101 special unit, belonging to the federal army SSF. During one of the battles, Iris is captured and taken to the whorehouse on Mirion, a city ruled by the enemy forces. She is forced to have a devil’s collar around her neck which blows up if she attempts to escape.