Fumizuki Academy isn't your normal high school in Japan. This one-of-a-kind college has devised a novel system for sorting its students. Students take a test that divides the student body at the end of their first year. The top scorers are placed in A class, and the lowest scorers are placed in F class. Unfortunately for Akihisa Yoshii, his ostensibly "superior" brain wasn't quite adequate for such a test, and he's now stuck in F class. F class, of course, has the worst facilities, including decaying tatami mats and broken tables, as well as antiquated equipment and worn-out furnishings. On the plus side, his friend Yuuji Sakamoto is in the same class, which comes as a surprise to everyone.