In class 3-3 of Yomiyama North Junior High, transfer student Kouichi Sakakibara makes his return after taking a sick leave for the first month of school.

Tucked in the mountains near the elite Kunugigaoka Middle School lies a small derelict building that houses the delinquents and dropouts of Class 3-E. Looked down upon by their peers, the students in this class appear to have little hope in advancing their academic careers.

Returning from their summer vacation, the students of Class 3-E at the prestigious Kunugigaoka Middle School find themselves up against unbeatable odds.

In a civilized society of anthropomorphic animals, an uneasy tension exists between carnivores and herbivores. At Cherryton Academy, this mutual distrust peaks after a predation incident results in the death of Tem, an alpaca in the school's drama club.