My son has been acting weird lately. He says he shuts himself up in his room and studies, but he won't let me in even if I call out to him. Her mother Sachiko is worried and she sneaks into her son's room. Then Soko has one erotic book. When questioned about her son, she says she has been ``smooth lately and can't concentrate on her studies''. Sachiko, who was surprised but noticed her son's libido, reached out to her son's crotch, saying, "Okay, leave it to your mother."
