Eiken

Noya Itsuki just transferred to Ebisugawa High School. Since he has always had a fascination with space, he decides to join the Astronomy Club. However, he mistakenly walks into the Asstronomy Club - a club whose members are all female otaku. Itsuki notices that the members are really weird, but he has yet to realize that he joined the wrong club. His life becomes very strange very quickly.

Blu-ray disc bundled with the fourth volume of the manga.

Kaname Okiura, a student of Prefectoral Umineko Shougyou High ("Umishou" for short), joined the school's swimming club in order to learn how to swim, but the club is filled with weirdos, let alone who can teach him swimming. Then, a sunny, happy-go-lucky girl named Amuro Ninagawa who transferred from Okinawa joined the club. Her extraordinary underwater speed and unorthodox swimming style (plus her personal habit of nude swimming—a powerful magnet to teenage boys) surprised every club member, especially Okiura, because she reminds him of a mermaid-like creature he saw only once in his early childhood.

It's the start of a new year for the Genshiken crew, and that means recruiting new members. Always a dreaded task, The Society for the Study of Modern Visual Culture manages to get Chika Ogiue pushed onto them from the Manga Club. With her introduction of "I'm Ogiue and I hate otaku", this year certainly will be anything but boring.