After a fight with his wife, Ken ends up hiding his mother's best friend, Ai, for a while after she runs out. Ken thought his mother's best friend was just an old lady, but the woman who showed up in front of him was a beautiful woman who was his exact type. This unexpected turn of events makes Ken's heart pound. In his wild state, Ken sneaks into the bathroom and looks through Ai's underwear, but ends up running into her...