My son's childhood friend Yusuke grew up without knowing the warmth of his mother.For many years, she treated Yusuke like a mother, hoping that Ayame could at least be a comfort.Yusuke also admires Ayame, and the two build a good relationship.However, now that Yusuke is about to grow into a full-fledged man, Ayame senses that Yusuke is starting to think of him as a woman, not as a mother.I wonder if the parent-child gokko will end soon.As soon as she remembers that, Yusuke sees Ayame masturbating.