Shortly after her husband was assigned to work alone, Yuka went off the road because of her loneliness. He had a physical relationship with his only son, Akira. Yuka who continues to be tampered with the nipple that is sensitive to Akira and has become a body that can no longer live without Akira. At that time, my husband's single assignment has come to an end ... Yuka and Akira are forced to make a decision. "It's not allowed to have sexual intercourse with a parent and child ... Do you understand?" Yuka advises Akira. Akira who is not convinced still gropes her nipples ...