Kouga Nishimiya hails from a prestigious alpha lineage that values purity above all else. In the world of business, his rival in performance, Misaki Houjou, stands as an alpha like him. Despite his family ties, Kouga distances himself from his alpha supremacist grandfather, the head of the Nishimiya clan. When his grandfather commands Kouga to care for an omega child named Haruto, a distant relative, Kouga reluctantly complies, feeling both disdain for alpha entitlement and empathy for the timid Haruto. As Kouga grapples with looking after the unexpectedly spirited Haruto, he learns that Houjou's child attends the same kindergarten. In this revelation, Kouga unravels a startling secret about Houjou that alters his perspective.