After getting married, the two of them moved out and Shizuki Yukari learned that her husband had an adult child who was the same age as her. Because they were a family, all three of them lived in the same house. Every night she was visited by this child. room and fucked her in her deep sleep, she didn't know that she was being fucked, every morning she didn't understand why there was love on her body and then one day she knew everything.