Secretly fucking your lover's sister

Iroha Natsume's pretty younger sister lost her boyfriend and her sister on the first day after many years of her parents' early death. And this brother-in-law has a goat-blooded nature in him. When he saw his sister wearing a wide-collared shirt that exposed her white breasts, the boy couldn't control himself. Then, the younger sister happened to go out for work and he went in to rape his girlfriend's older sister and then,.