Mamiya (Rumi Morio) remarries Kuguhu, bringing along her daughter Asuka (Asuka Ozora). Kuguhu has two sons who get along well, and the five of them begin living uneasily under the same roof. However, Kuguhu becomes obsessed with dating sites and neglects his wife Mamiya, while Asuka grows increasingly disturbed by the unsettling attitudes of her stepbrothers. This newly blended family finds their personal emotions intertwining, giving rise to complex relationships. Between Mamiya and Asuka unfolds a sensual drama blending maternal bonds with romantic feelings. The story portrays the shifting emotions that emerge in daily life and how they confront these turbulent feelings.