Her husband is away on a business trip overseas, leaving Mizuki living alone with her three sons. One day, after working late and drinking to relieve her stress, she returns home completely exhausted and falls asleep without realizing what's happening. When she comes to, her sons are standing there... Under the influence of alcohol and lacking self-control, Mizuki is drawn into a taboo, intimate relationship with her sons. A heart-pounding story unfolds where daily fatigue and temptation collide.