Two years ago. During her school days, she suffered an unforgettable humiliation on a bus. The girl, whose virginity was taken by a pervert, harbored a secret desire to be violated again, besides regret. Her masochistic tendencies, awakened by her first experience, awaited the pervert's actions. However, the pervert's skillful manipulation between her legs was insufficient to satisfy her desires. Holding onto feelings akin to romance, she awaited that fateful encounter with the pervert, and today, Nanami, also takes the bus…