It is the start of Takatoshi Tsuda's second year as the put-upon vice president of the student council and his sister Kotomi is entering school as a first year. New friends and double entendres are made. (Source: ANN)

Six months ago, Sakuta Azusagawa had a chance encounter with a bunny girl in a library. Ever since then, he's been blissfully happy with his girlfriend: Mai Sakurajima, that same bunny girl. However, the reappearance of his mysterious first crush, the now-adult Shouko Makinohara, adds a new complication to his relationship with Mai. To make matters worse, he then encounters a middle school Shouko in the hospital, suffering from a grave illness. Mysteriously, his old scars begin throbbing whenever he's near her. With Shouko's bizarre situation somehow revolving around him, Sakuta will need to come to terms with his own conflicting feelings, for better or worse. With a girl's life in his hands, just what can he do?

OVAs of Seitokai Yakuindomo* which were either bundled with the limited editions of the manga volumes or as standalone OVAs.

On his first day of high school at the formerly all-girl's Ousai Private Academy, Takatoshi Tsuda is called out for his untidy uniform by the student council president Shino Amakusa. In apology for delaying Takatoshi for his first class—and stating that the group needs a male point of view to accommodate the arrival of boys at the school—Shino offers him the position of vice president of the student council. Though unwilling, Takatoshi finds himself appointed as the newest member of the student council having yet to even step foot inside the school building. Takatoshi soon realizes that the other student council members who are more than a little strange: President Shino, who is studious and serious in appearance, but actually a huge pervert, fascinated with the erotic and constantly making lewd jokes; the secretary Aria Shichijou, who may seem like a typical sheltered rich girl, but is just as risque as the president, if not more so; and finally, the treasurer Suzu Hagimura, who may act fairly normal, but has the body of an elementary school student and is extremely self-conscious of it. Surrounded by these colorful characters, the new vice president must now work through a nonstop assault of sexual humor and insanity.