Nanase, the cool lead of the alpha idol unit, Cosmic, has a secret he doesn’t want anyone to know: he’s actually an omega. However, Daichi, another member of Cosmic and a real alpha, tells Nanase face-to-face, "What if we’re destined mates?" and starts rubbing Nanase’s body provocatively...!? Though Nanase controls himself through use of suppressants, the moment Daichi touches him, his entire body is overcome with indecent desires...!!