Reio Shindo is an alpha who joins a pharmaceutical company run by his grandfather. He witnesses the existence of omegas for the first time when he meets Amazawa of the R & D department, an omega who is researching heat suppressants. Although Reio is fascinated by the charming Amasawa, he tries to draw the line since they are colleagues working for the same company; but what will happen when Amasawa asks him to stay with him for research during his heat period...?! A omegaverse romantic comedy.