Once popular during my student days, I have become a lonely single office worker as my friends marry and drift away. Then an unfamiliar beauty stops me on the street: Hina, my childhood friend who confessed her feelings ten years ago. The formerly plain, small-breasted girl is now a gorgeous, busty married woman radiating sex appeal. That night, after leaving home over a fight with her husband, Hina comes to me with nowhere else to go.