I came out of the countryside to visit my father and decided to visit my younger brother and his wife's house. Satomi, my brother's daughter-in-law, has a wonderful smile and an erotic body. Even though I know it's a bad thing, I fantasize about the lascivious appearance of my brother's wife. Satomi masturbates to show off, Satomi gives a in the bath, and my delusion grows more and more.