Yoshie married into a single-parent family as a second wife. Her husband Kensuke is kind to her, but her only son Takahiro won't open up to Kokoro, which worries Yoshie. Then one day...Her husband Kensuke goes on a short business trip and leaves the house for a few days. Feeling uneasy, Yoshie can't hide her nervousness about living alone with Takahiro. However, that night, while Yoshie is asleep, the sliding screen to her bedroom quietly opens. Takahiro, who has begun to think of Yoshie as a "woman," sneaks into the room...