Although her only daughter married and became her husband, Yasuko was frustrated by his lazy daily life. Moreover, her husband had no energy in his lower body, and Yasuko, who was still in her prime, was not satisfied. Today, she gave in to her anger and scolded her husband, but her husband and daughter tried to calm her down. One night, while lying alone in bed after her husband went out drinking, Yasuko woke up because she felt something strange in her futon. Her son-in-law had come to rape Yasuko. The son-in-law was stressed by Yasuko's constant scoldings and was having nightmares every day. He thought that he could relieve his frustration by attacking Yasuko. When Yasuko woke up, she told him to stop, but the excited son-in-law continued to caress her roughly and raped her. Unfortunately, her husband came home in a good mood, but Yasuko headed to the bathroom without being able to look him in the face. In the bathroom, she took a shower to cleanse her body that had been raped by her son-in-law earlier. However, Yasuko's body, penetrated by her son-in-law's hot, strong thing, could not suppress the throbbing, and his fingers naturally began to play with her private parts. The son-in-law regretted what he had done and could not sleep. Hearing the sound of the shower, he quietly went to the bathroom. Unable to resist the sight of Yasuko writhing while playing with her body, he embraced her. Yasuko was surprised, but she accepted her son-in-law and they made love. Yasuko began to indulge in pleasure, as if to satisfy the excitement she had not felt before...