Mahiro, who married her childhood friend a few years ago, looked up to him like an older brother. One day, she received a call from her in-laws saying that her brother-in-law, Shiro, was injured and they couldn't care for him for a week, asking if she could help. Mahiro disliked the way her father-in-law and brother-in-law looked at her, and the oppressive atmosphere of her husband's family home. Reluctantly, she had to go there, but the injury was just an excuse for her father-in-law to take advantage of her. The meal served by her father-in-law had drugs mixed in, and Mahiro was unable to resist, becoming a victim of the rape house...