Nanao Sakushima, an omega, joins a group at his boarding school that sells their bodies to wealthy alphas for money. When alpha transfer student Soushi Ashiya claims to be in love with him, Nanao is skeptical due to his negative views on alphas. Despite this, when he offers himself to Soushi, he is surprised by Soushi's refusal. Witnessed by Isesaki, the group's sponsor, Nanao is punished and forced to lure Soushi during their mating period. As Soushi struggles with his desires during this period, he finds himself drawn to Nanao against his will. Caught in a love dilemma, Nanao, who distrusts alphas, is ensnared in a complicated web of emotions and desires.