Yusuke, a childhood friend of his son, grew up without knowing the warmth of his mother. For many years, Ayame has been treating Yusuke like a mother, hoping that it will be at least a comfort. Yusuke also longed for Ayame, and the two had a good relationship. But now that Yusuke is about to grow into a full-fledged man, Ayame knows that Yusuke is beginning to recognize himself as a woman rather than a mother. I wonder if parent and child Gokko is about to end. As soon as I remembered that, Ayame was seen by Yusuke masturbating ...