Kiriko lives with her husband and son Koichi. The reason why long married life is good is "sex". My husband was satisfying Kiriko's libido almost every day. ... One day, my husband goes on a business trip. Moreover, the timing was bad and Kiriko had her period in a few days. Kiriko has been worried about her sexual desire increasing abnormally before her period. And then, Kiriko unintentionally motions the courier who visits her house...
