Because she is not good at dealing with complex interpersonal relationships, the girl Ando Natsuki (voiced by Kido Ibuki) who has just entered high school decides not to join any clubs and become a veritable "return home club" (students who go home directly after school). Who knows that there is actually a physical "return home club" in her school. By mistake, Natsuki and the freshman Tadano Hana (voiced by Yukina Mizuki) joined in and met three second-year seniors: the always heartless minister Daomingsi Sakura (voiced by Kobayashi Miharu), the heir of the ancient martial arts of the Hagi style, Dahagi Mudan (voiced by Aina Sae), and the daughter of a super tycoon family, Kujo Claire (voiced by Senbongi Ayaka). The five girls have nothing to do every day, but they can always come up with boring and exhausting topics to enrich their seemingly monotonous but actually interesting college life... This film is adapted from the original work of the same name by Kuroh.