Shortly after her marriage, Meisa finds herself feeling lonely as her husband is frequently away on business trips. A former teacher, she is called to the home of her student, Mita, who is preparing for exams. When Mita suffers a leg cramp, Meisa begins giving him a massage, gradually finding it harder and harder to suppress her arousal. Though she resists at first, she eventually gives in to Mita's advances. One day, Meisa notices her neighbor, Sagawa, collapsed and begins to grow concerned about him.