The Fujiyoshi family, consisting of househusband Masaki, his spouse Hiromu, and their toddler son Hikari, relocate to a new neighborhood in search of a fresh start. Hiromu, an alpha, and Masaki, an omega, face societal discrimination despite their love for each other and their child. The family finds support in their college student neighbor Yuuki, who initially hesitates but eventually warms up to Hikari, and Hiromu's childhood friend Tomohiro "Matsu" Matsuo. However, their peaceful life is threatened by a sudden reappearance from Hiromu's past.