Chika is a chaste and beautiful wife who has been married for five years. I've completely gotten used to living in the countryside, which is my husband's parents' house. However, perhaps because she married from an unknown region, she didn't have any close friends, and she didn't have many days to see her already busy husband. The only pleasure in the countryside where there is no entertainment like this is sexual intercourse with her husband. However, I couldn't force my exhausted husband, and I was spending my days in frustration with unfulfilled desires. In the meantime, Chika began to enjoy obscene delusions when she was alone.