While Motoyuki is relaxing, his stepmother Kumi emerges from the bath wearing only a tank top that clings to her body, her skin glistening and translucent from sweat and steam. Motoyuki's heart races at the sight, visibly flustered. Unaware of his reaction, Kumi calmly heads back to her room. There, she begins masturbating alone, moaning softly as she approaches climax. Just as she reaches orgasm, she suddenly realizes Motoyuki is standing in the room. Panicked, she tries to compose herself—but Motoyuki deliberately steps closer, pressing his crotch toward her.