Mei Satsuki, a slender busty girl, is licked by her insidious father-in-law! Mei, who grew up without knowing her father's face, has lived in harmony with her mother in cooperation with her. However, when her mother remarried, she moved to her father-in-law's house and lived an awkward living together. One day, when Mei, who had finished drawing the nude of her art club's task, was napping, her father-in-law appeared and raped her lips. However, the nightmare of her father-in-law cannot end with this ...