Yuutousei Ayaka no Uraomote: Ayaka is a model student at the top of her class, with pigtails and glasses that look very plain. She has no boyfriend and knows nothing about sex. But one day, Ayaka accidentally learns how to masturbate and have sex. She wants to live as her true self, and from then on, her personality gradually changes: she takes off her glasses, changes her hairstyle, and becomes a completely different Ayaka...