Hikari, a plain, gloomy college student who came to Tokyo from the countryside, is actually a super-sexy girl who used to have a lot of sex in her hometown. She seduces her classmates and the manager of the store where she works part-time, and gets them to have sex with her. She pretends to be innocent until she gets to the missionary position, but when she gets to the cowgirl position, she completely changes! She plays with the men with her unconventional cowgirl position! Even after she ejaculates, she doesn't stop swinging her hips, and she devours pleasure until she's satisfied, making them cum inside her over and over again!