I work at a publishing company and live alone in a large house. My wife has a lot of business trips and less time together, and I was asked many times every time I returned home, and I was exhausted. Whether she knew me or not, her sister-in-law, Erika, often came to visit me at home. That day, she changed from small talk to night life, and Eri, who had a mischievous expression, touched her crotch. Erika whispered to me that I lost her reason and tried to seek her body, and that if she could abstain, she could like me for 30 days.