On the third anniversary of her mother-in-law's death, Yu visited her husband Hiroshi's family home. Despite not having seen them in a long time, Yu couldn't hide her nervousness. However, her father-in-law Tomio and brother-in-law Hiroyuki warmly welcomed the devoted Yu. But when her brother-in-law Satoru returned home for dinner, he sent Yu a lecherous glance and said, "Hiroshi doesn't deserve you." Then, Satoru forcibly raped Yu in the kitchen. Moreover, Hiroyuki, who had been watching, exposed his desire and attacked her. Unbeknownst to her husband, Yu was being violated by her in-laws. The humiliating weekend had only just begun.
