Suzaku High's Ryu Yamada is a lethargic sophomore student whose routine is mundane. His frequent tardiness, inattentiveness in class, and lackluster academic performance add to the boredom. The exceptional Urara Shiraishi, on the other hand, is the school's brightest student. However, for no apparent reason, their bodies switch one day - Ryu wakes up in Urara's body, and Urara in Ryu's.