After losing her husband, Misa has been raising her son on her own. Perhaps because she has continued to spoil him, her son has grown up to be someone who is still unable to stop breastfeeding, but Misa herself is trying to ease the loneliness of being without her husband. However, her son suddenly becomes sexually awakened and begins to see Misa as a sexual object... and becomes attracted to her big, plump ass. At first, Misa thinks it's part of her sex education, but perhaps because she has not had a man for years, she begins to desire her son, and tonight she offers him her big ass...