Ayuumu, a literature student with an innocent personality and a hobby of visiting 100-yen shops—the epitome of a gentle humanities girl. Having just finished her job hunting, she finally has free time and has resumed her long-abandoned flute practice. Then, out of nowhere, she's invited to start reading aloud—after being told to wear "jumping panties," a phrase that surprises her. For Ayuumu, who's only had one sexual partner, "jumping panties" is a completely new concept. Stimulated by the phrase, she feels the vibrator directly against her shaved pussy so intensely that she orgasms and involuntarily pisses herself. Yet despite this, she continues reading without stopping, enduring each escalating challenge. Her panties are pulled off, she's given a dry hump, and eventually, she's penetrated. Can she really keep reading until the very end? That answer is left to you.