I'm on a business trip right now, and my wife Arisa called me. I wonder if she's already lonely? I can't help it... I thought as I answered the phone, and it turned out that Arisa's sister's husband, Takefumi, had come to our house. Takefumi... I'd had a conversation with him once over a drink, and he's a terrible man who only sees women as tools to satisfy his sexual desires. I had a vague feeling that he had his eye on Arisa for a while, but of all things, he came when I wasn't there...