The Suzuki family had a good relationship, and it was common for the mother, Mayu, to get close to her husband in front of her son, Kiyoshi. However, as Kiyoshi continues to see the two of them getting along well, he gradually begins to recognize Mayu as a woman. Kiyoshi, filled with desire, decides to schedule Mayu for his father’s business trip and puts Mayu under house arrest in his room! Although Mayu is surprised by her son’s crazy behavior and resists, she gradually entrusts her voluptuous body to Kiyoshi and teaches him loving sex as a mother…