As my wife was about to give birth, my mother-in-law, Tina, came to Tokyo from her parents' home to support her. Thanks to Tina, my wife's burden was lightened, but on the other hand, I was troubled. My wife had ordered me to stop masturbating a month ago, so I was desperately trying to control my sexual desire... Even though I knew it was wrong, I couldn't help but stare at Tina's voluptuous body. Furthermore, I ended up peeking at her naked body while she was taking a bath...