After finally getting his first girlfriend, an inexperienced virgin has no idea how to handle dating or sex, so he asks his adult childhood friend Noeru for advice. She unexpectedly suggests that he lose his virginity to her first. Afraid his girlfriend will discover his inexperience, he practices sex with Noeru, including blowjobs, cunnilingus, and even creampies. Only then does he realize that the woman he truly loves is Noeru. The twentieth entry in the hit youthful romance series, performed by adults.