ばくおん！！OAD

Kido Tatsuhiko moved to Tokyo to attend an art school and start his new life. In his new room, there's a small hole in the wall. At first he can see nothing through the small hole, but one night, through the peeping hole, he saw a girl named Ikuno Emiru, a perverted voyeur who ropes him into her peeping fetish… But each winds up getting more than they bargained for.

The series focuses on the adventures of Arata Kasuga, a high school student, who is targeted by Lilith, a teacher at a mystical school. Given three choices in an effort to help save the breakdown phenomenon of the world by evil forces and while attempting to solve the mystery of his beloved cousin and childhood friend, Hijiri, who disappeared to a difference space.

Kaoru is a 17-year-old boy with an SM fetish, secretly dreaming of an SM relationship with his childhood friend Nana. One day Kaoru's mother asks Nana to hide all his SM toys so that he will study for a change. However, Nana finds the leather one-piece that Kaoru bought and tries it on, but she accidentally locks it and does not have the key! This is the beginning of a very strange relationship..

Narrowly escaping the clutches of Lord Guizei and his band of professional killers, Elysse Mordish is on the run and in possession of a vital computer code needed by the military to reactivate a high-powered secret weapon. Enter Tita, intergalactic pet shop hunter and captain of the Cha Cha Maru. Through shear dumb luck she finds herself rescuing Elysse from military hunters thus putting the lives of both herself and her crew in mortal peril! It's a dangerous game of cat and mouse on a planet-wide scale with one crucial difference... mice don't shoot back, but Tita does!

A world where the existence of magic has been known for a century as a mysterious power to rival science. However, the discovery of MISO — the Material of an Impediment to the Sorcerer's Orders — made magic into not a special power, but a technique that can be raised. One morning, while Shōta Hacchōya (a high school boy attending a magic academy) was tasting miso soup, a princess of Majieeru suddenly breaks in. Majieeru happens to be the birthplace of magic.

Superior technology may have bloomed by the year 2012, but it has not changed the face of humanity. For young men like Kay, life is still plagued by nothing but homework and girl trouble. When an unknown force besieges Earth with robotic war machines, however, it is Kay who is chosen to defend the human race. In order to activate the super-weapon Devadasy, Kay must find his perfect match. Only one man and one woman together can use the Devadasy, and protect the peace of mankind!

After blessing software announced their first work, Eriri and Utaha leave the group to join popular creator Akane Kosaka in developing a major game called Fields Chronicle. Meanwhile, Tomoya and Megumi join hands with their new members and various other parties to produce their new game. What will become of Eriri and Utaha’s major work? Will the relationship between Tomoya and Megumi change? And what will be the ultimate fate of blessing software’s new game?

Ousai Academy was originally an all-girls high school. Due to the declining birth rates in recent years, it was converted into a co-ed school. The first year male students would find themselves surrounded by girls and unfortunately, Tsuda Takatoshi is one of them. What's worse, he gets scolded on his first day by the student council president Shino Amakusa, which did not give a good first impression of him. Tsuda also meets the other student council members while getting scolded, and in the end, he gets late for class. As an apology for ruining his morning, Shino lets him join the student council for various of "reasons" and he accepts it, or rather, he's forced to accept. Thus begins his days as Tsuda soon realizes that he's the only normal student in Ousai Academy...

In the second part of this manga adaptation, Tairaku Arihiko, who is a teacher at a local high school, lives with his student Shirakaba Aya and things are becoming steamier. As she becomes aggressive with her love for him he has to navigate his responsibility and job, his cute student and her thug father.

A bunny alien, a maid-dominatrix, a cyborg, a magical girl, and a transforming super hero set out to vanquish a set of monsters to retrieve a set of magical Mahjong tiles known as the Pai - these ancient artifacts will grant the one who gathers them a wish, and these girls aren't going to let anything stand in their way - monsters, or each other!

An OVA released between episodes 5 and 6 of AIKa, that takes place between episodes 4 and 5.