Good-looking, intelligent, and excellent in both sports and academia... The alphas are a class admired by everyone and among them is Souichi, an alpha who is average in everything he does. This has caused him to be severely insecure and despite also having doubts about his ability to detect an omega's pheromones, he still dreams of one day meeting someone who would love him. One day, he entered a seemingly empty classroom and saw the figure of a blindfolded student in restraints, looking like he had just orgasmed... At a closer look, his partner is an alpha from the student council! And when Souichi laid his eyes on the boy who just got done, his heart can't stop racing! Is this an omega's pheromones!? Incited by the words, "A beta isn't enough after just doing it with an alpha", Souichi found his instincts beginning to take over and...!! 眉目秀麗、文武両道…誰もが憧れるαという種族の中で、何をやっても平均的な恭一。 ある日、人気のない教室で生徒の情事を目撃してしまう。 犯されていた男子に目をやると…胸の鼓動が止まらない…!!　これがΩフェロモンというやつなのか…!? Ωフェロモンにあてられた恭一は本能の制御も利かず襲い掛かってしまう。 だが、それは全て恭一の勘違いだった。 犯した相手・紘は実はβで、合意ではなかったことを脅しの種に、 自分専用ち〇ぽになるよう恭一に命じて──!?