She is a seasoned woman who once worked as an office lady in the media industry and has had numerous romantic experiences with men. After marriage, she settled into family life in a house in a residential neighborhood of Yokohama, waiting every day for her husband to come home. Her life became almost like a half-imprisonment—wrapped in loving affection during the first year. But by the second year, she began to feel doubts about this routine. Unable to suppress her emotions any longer, she finally decides to embark on an affair. Tired of a relationship trapped in daily monotony, her pursuit of new excitement begins.