Kashiwagi Mika, a beautiful stepdaughter, falls under the spell of her father-in-law's clever plans. From lacing her underwear with aphrodisiacs to spiking her shampoo, the stepdaughter's desire and lust are gradually awakened. As time passes, her craving for her father-in-law grows stronger, and on the 100th day, she finally gives in to her desires, writhing in ecstasy on his lap. This is a creampie, MILF, amateur, and full HD exclusive story.