Yuu came to her husband Hiroshi's parents' house for the third anniversary of her mother-in-law's death. It's been a long time and she can't hide her nervousness, but her father-in-law Tomio and her brother-in-law Hiroyuki welcomed her devoted Yu. However, her brother-in-law, Satoru, who comes home at dinner time, gives Hiroshi a lewd look, saying, "She's a waste for Hiroshi." Then, Satoru forcefully rapes Yuu in the kitchen. In addition, Hiroyuki, who was watching it, also attacks her desire. Yuu gets fucked by her step-family without her husband knowing. The humiliating weekend has just begun.
