A "science trouble" romantic comedy OVA bundled with the manga's fourth volume. It follows a top school boy named Komaba Haruki with his fantastic two lady friends: the cyborg girl Airi, as well as the half-dog girl Ayana. The two go to extremes with the strength of science, which only gets Haruki involved in ecchi troubles.

The story about Masayuki Mizutani, normal high school student. He lives with his classmate Shimizu Sakai. His parents went abroad for work. Well, happiness, home alone, silence and quiet. But it was not there, the parents asked a neighbor's daughter to look after their son. And she'll take care of him in every sense. For this girl, Shimizu, and only waited a convenient opportunity to make him love me. Well, as usual, with her and Mizutani will

In far Japan has it all – even the Orthodox gymnasium of St. Mikhailov, in which occurs the action of the series. Seemingly quiet private school becomes an arena of struggle between "believers" and heretics that are looking for the miraculous icon that allegedly gives the key to the greatest mysteries of the universe. Both sides of the conflict involved "kwatery" - the mysterious adepts of alchemy, who own some natural element and use it in