The Master of Killing Time OVA

Bundled with the limited edition of the 12th volume of the manga.

Shin Koihime†Musou: Otome Tairan OVA.

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

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.