You are Issei, a college student working as a part-time tutor. Your pupil is a young man named Eiichi, and it just so happens that his mother is the woman you had a one-night stand with in Bali... Chisato. Chisato is so thrilled to see you again that she tells two of her best friends, Nana and Kagari, all about you. The problem is, both Nana and Kagari are married as well. Now Chisato, Nana, and Kagari are all dissatisfied with their sex lives... and they want you to give them the pleasure that they've been missing out on. Thus the Hitozuma Hime Club is formed, and the club activities are all strictly sexual! Can you keep up with these three hot and bothered young housewives? Have fun!