It's been 7 years since I lost my husband. The eldest son has wanderlust and suddenly disappeared from home two years ago, and now lives with his second son, Tomoya. I was superimposing the image of my deceased husband on Tomoya. I seduced Tomoya out of loneliness, and then I made a mistake. One day, my eldest son suddenly came home. My eldest son, Yutaka, who found out about the relationship between me and my second son ...