Father-in-Law Has Left His Mark Feeling empty due to her husband's selfish and overbearing demands for sex, the housewife Mirai was reduced to comforting herself with daily masurbation. Finding her fingers not enough to soothe herself, she secretly purchased a vibrator from a mail-order service... But then she was caught in the act by her father-in-law Kozo! Kozo would intimidatingly approach Mirai, "why don't you show me how you use this thing?" Throbbing with sexual frustration, Mirai found herself cumming over and over again thanks to Kozo's overbearing sexual assaults.... Father-in-Law Leaves His Mark On His Beautiful Daughter-in-Law Miki Sunohara.