Fukaya Yuito (17), lives as an omega in hiding. As such, Yuito acts as a caretaker for the beautiful blind alpha, Kunishiro Aoi. Although wishing to be a free man, Yuito cannot help the deep attraction he feels towards Aoi. Even as it is, he wishes to stay by his side as only a servant, but the desire to be Aoi's『mate』is instinctual. Approaching soon is Aoi's 20th birthday, and the discussion of eye surgery is raised. At this time, Aoi's older brother, Ren (25), in preparation for Aoi's debut in high society, begins his search for the perfect omega…