Ichika Hoshimiya from that day when her muddy stepfather mistook her for her stepmother and violently forced her to have sex with him at night.

After getting married to her husband who travels a lot on business and continues to live at home, Ichika lives in two households at his husband's house.After leaving work, she tries to have a child with her beloved husband, but there is no sign that they will be able to have a child. , and her husband, who is often away from home on business trips, are starting to get cold. The relationship between her father-in-law and mother-in-law, with whom she lives, is generally good. She is just dissatisfied with the fact that her father-in-law drinks alcohol every day, gets drunk, and abuses her mother-in-law. One night, her stepfather comes into Ichika's room drunk. *The contents may differ depending on the distribution method.