Shiho married a man with a child and became Shinsuke's stepmother. However, there was a big wall between them and Shinsuke, who was of a certain age, and Shiho was worried about it. One morning, Shiho went to Shinsuke's room as usual to wake him up, as he had a really bad time getting up. When she pulled the covers off, her eyes were drawn to the bulge between his legs (morning wood), which she hadn't noticed before. Shiho was aroused and obscene words started spilling out of her mouth.