Emi is a mother who worries about her son, who is exhausted from hard work and has no energy. One day, my husband and Emi were working at night, but my son was excited to see it. Emi notices her son peeking, but she pretends not to know about it. The next day, Emi goes to her son's room. Talk about last night with care. Emi gropes her son's crotch, saying, "You had an erection, didn't you?" In order to cheer up her son, she begins to take off her clothes, saying, "You can do as you like your mother's body." He was a confused son, but he got excited and piled up his body with his mother's guidance...