Nasao Yarumugi is a second-year middle school student who is lethargic about everything. Having been told that getting into a metropolitan high school would be difficult since he isn't in any clubs and has low grades, he establishes a club in name only, strictly to make things easier for himself. However, there is no way he can easily survive the world of a pubertal school surrounded by middle schoolers who exclude outcasts and adults who cannot be trusted...