Kyou no Go no Ni revolves around Sato Ryota, a 5th grader in an elementary school. He is a bright and active boy but always manages to get in to a bit of ecchi trouble with his female classmates.
OVA - Mar 24, 2006
Tomohiro Takabe is suprised one day when Mina Hayase tells him she wants to be more than a friend. Instead of being her boyfriend, Tomohiro is going to be her "sexfriend". With the help of the school nurse, the two spend their days in the nurses office. The two then decide to further their friendship by trying out some new ways. (Source: ANN)
OVA - Jan 22, 2004
Tetsuya's investigation into a luxurious hotel turns over a nest of yakuza and a bizarre orgy cult. On rich silk sheets and velvet chairs, the rich and powerful participate in sex acts so depraved that just witnessing them is likely to turn a man into a monster. But the true purpose of this cult is a pact with evil energies that can literally turn Tetsuya into an inhuman demon. (Source: ANN)
OVA - Apr 29, 2005
In a certain town, there were consecutive phantom assaults. Because the incidents were extraordinarily, there was a rumor that a ghost or supernatural creature caused them. The students in the school which Akitoshi went to were frightened. One day, an unknown girl appeared in the school. However, all the students except Akitoshi thought they had known her. Feeling strange, he shadowed her in order to investigate her but he lost sight of her. At that moment, he heard the scream of a woman from the nearby material yard and went to the place where the scream came from. There he found the beautiful girl of the school, Mikage. Mikage was surrounded by monsters "Yuragi" (fluctuation), and she was hanged naked. Yuragi noticed Akitoshi and began to attack him. Then, the fighter, Ai, appeared and cut them down. Akitoshi stared at Ai. What was her true character, an enemy or an ally? (Source: AnimeNfo)
OVA - Aug 25, 2003
Maid in Heaven is a tart little two episode OVA focusing on the rather sordid relationship between Yuusuke Matsudo and his childhood friend Nagisa, who’s also his newly hired maid. Of course, it would be more accurate to call her his maid/willing sex slave, since when she isn’t cleaning or making food, he’s showing her all the ways to be a true maid. How should a true maid act you ask? By being sexually subservient and promiscuous of course! She’s not quite there yet though, and Yuusuke’s on a mission to train her to be a true maid, ready and willing to please wherever and whenever he so desires! (Source: Animetric)
OVA - Oct 28, 2005
A short 5-minute special included in the "「Kyou no Go no Ni」 Collectable BOX" Limited Edition DVD released on January 30, 2008.
Special - Jan 30, 2008
Be good, or you might get punished... Everyone looks up to Ayaka. She's one of the most beautiful professors at the academy, with bright eyes, big breasts, and a brilliant smile. But she's got a tough side, too: she's coach of the Karate Club. Treat her well, and you'll be rewarded with all sorts of sexy favors... but get on her bad side, and you'll be flat on your back in no time. So far, there's only been one guy bold enough to anger Ayaka: a brash new student named Togawa. One night, he finds Ayaka having a one-woman orgy in the gym shower room and decides to step in. Will Ayaka's temper flare up once again, or will she be swept up by her lustful desires?
Critical Mass Video
OVA - May 28, 2004
Based on long running manga by Tatsuya Egawa (Golden Boy). It tells the tale of final-year high-schooler, Murakami Naoki who falls for Mizuno Haruka as they make university entrance exams preparations. (Source: AniDB)
OVA - Feb 24, 2004
Saionji Akitsugu is the heir to his father's immense fortune. But, he hates his father as he holds him responsible for pushing his mother to kill herself. When his father dies, Saionji is the least bit inclined to claim his inheritance. But his newly arrived secretary, Sannomiya Rei convinces him otherwise. He finally arrives at his ancestral home - a palatial mansion brimming with pliant maids who, he presumes, existed for the sole purpose of servicing their now deceased master... (Source: ANN)
OVA - Jun 25, 2002