As the time for childbirth approached, my mother-in-law Tina came up to Tokyo from her home to support my wife. Thanks to Tina, my wife's burden was reduced, but I ended up with a problem of my own. Ever since my wife ordered me not to masturbate a month ago, I've been desperately trying to suppress my sex drive… Knowing it's wrong, I can't help but follow Tina-san's voluptuous body with my eyes. And then, I caught a glimpse of Tina-san naked while she was bathing. As I was captivated by Tina-san's nudity, 'Renn-san, you're watching, aren't you?' and my peeping got busted...
