The beautiful, haughty Karen is shocked when she discovers that her “rival” Usami has a boyfriend. Unhappy she was beaten to the punch to getting a boyfriend, she immediately heads over to her childhood friend Soutarou to take his virginity.
Update (2020/04/20): I don’t know exactly when, but Amane Ruri’s doujinshi works were licensed by Irodori Comics, therefore they are no longer available on exhentai/e-hentai and I’ve removed download and read online links to this story. Please do not ask us about where you can find our scanlation for it; try to support the official translation if you can. Thanks!