During her university days, Miyuki was seduced and married the manager of the family restaurant where she worked part-time. Since her husband's working hours were irregular from the beginning of their marriage, Miyuki devoted herself to housework in order to spend more time with her husband. At first, he would cut his work short and prioritize returning home, and their nighttime activities were fulfilling. Even though he was busy, he showered her with love... but eventually, perhaps due to her youth, her desires were no longer satisfied, and she naturally began to go out drinking with old friends. Then, she met an older man at a bar. He skillfully seduced her... and then...