One day, I visited my best friend Hirose's new home. When I couldn't help but stare at his young and cute wife Umi with a lustful gaze, it seemed she was subtly aware of it. And the following week, when I visited my best friend's place again, Umi sneaked up to me when my friend wasn't looking. "I bet you're thinking of having sex with me as long as it doesn't get out... Am I right?" she pressed on me!