In a world where beastmen coexist, two students at a high school are known as the top fighters among the student body. Aito, a rabbit clan delinquent with a tough and beautiful appearance, and Rouma, a wolf clan delinquent with an equally fierce reputation, constantly clash for the title of the school’s strongest. To their classmates, they are bitter rivals locked in an endless feud. The truth, however, is that they are secretly dating, a relationship they must hide because of their different species and the fear of social backlash. Adding to the tension, Rouma grows increasingly frustrated because Aito refuses to take their physical relationship any further. Desperate to move past this barrier, Rouma devises a scheme to finally get closer to his reluctant partner.

The story follows their hidden romance as they navigate the pressures of school life, the thrill of being rival top dogs, and the complications of inter-species intimacy. Key narrative arcs include a chaotic amusement park date where Rouma, despite his own fears, accompanies Aito on thrill rides, and the critical moment when Aito enters a heat period (発情期). During that arc, Rouma’s carnivorous instincts battle with his desire to protect his beloved, culminating in Aito’s bold declaration that he would allow himself to be devoured. Their homeroom teacher, a bear beastman who is largely bear-like in appearance, provides occasional comic relief, while the constant threat of exposure forces the couple to balance their public enmity with their private affection. Through these episodes, the series explores the push and pull of a “fighting couple” whose love is as explosive as their rivalry.