After spotting Izumi Sano at a high jump meet, Mizuki Ashiya fell head over heels for him—going so far as to relocate from the United States to Japan and enroll in his same institute. However, Sano’s academy is an all-boys school! Thanks to her outgoing nature, Mizuki quickly makes friends with her classmates without getting suspended for her gender. To her astonishment, she becomes not only Sano’s classmate but also his roommate. Although she can now admire Sano up close, she discovers that he has quit high jumping and refuses to ever return to the sport for unknown reasons. Furthermore, the academy’s doctor, Hokuto Umeda, might be catching on to Mizuki’s disguise. Now, Mizuki must find a way to reignite Sano’s passion—all while keeping her secret hidden.