Minori is married to her husband and has been living with her father-in-law for four years. She is extremely happy with her married life, but the only thing she is not satisfied with is the couple's pillow affair. They both agreed to have sex on Minori's ovulation day to make it easier for her to get pregnant. But the intercourse was short, her husband only wanted her to receive his semen so that she could get pregnant without paying any attention to her feelings. Although she was disappointed, she had no other choice. She was taking a shower when she met her father-in-law. Realizing that his daughter-in-law was not satisfied with sex, he put her down and made up for the pleasure that sex brings, which her husband cannot give her. After that, every time the day of ovulation came, after having sex with her husband, she went to see her father-in-law so that he could ejaculate inside her, filling the empty feelings left by her husband with the ultimate feelings of happiness that her father-in-law brought...