I have a propensity to get excited about women's underwear, so I'm curious about my mother-in-law, Emiri, who came with my father's remarriage, and her underwear. I was secretly wearing her panties and masturbating, but Emiri-san caught the scene! But instead of making fun of my embarrassing appearance, kind Emiri-san laughed and said that it was only natural for me to be interested in women's underwear. From that day on, a bad relationship between me and Emiri began...
