Yuta, a childhood friend of Teranishi, visits Teranishi's house and greets Kae, Teranishi's mother, feeling a mix of sweet and bitter emotions. The love he had for Kae as a child still lingers within him. However, a new feeling arises—he wants to make love to Kae. Torn between his tender affection and intense desire, Yuta struggles. Suddenly, an unexpected event leaves Yuta and Kae alone together…