Seven years have passed since I lost my husband. My oldest son has a tendency to wander, and he suddenly left home two years ago. Now I live with my second son, Tomoya. Before I knew it, I had seen the image of my late husband in Tomoya. I seduced Tomoya out of loneliness, and made a mistake. Then, one day, my oldest son suddenly returned home. My oldest son, Yutaka, found out about my relationship with my second son...