I was enjoying living alone again for the first time in a while. With my wife pregnant and staying at her parents' home, I finally had some freedom. One day, my sister-in-law, Miyuki, came to visit, looking concerned. She seemed troubled by the thought of me being all alone. Sensing my situation, I invited her inside. But suddenly, she gave a strange, eerie smile and made an odd proposal. "I've heard men are most likely to cheat when their wives are pregnant. Could it be you're feeling pent up?" With that, she stared at me intently, as if eyeing her prey...