This drama is adapted from the manga of the same name. It tells the comedy story of Sho Ijuin, the legendary leader of a delinquent group of more than 1,000 delinquent boys, and Tatsuto Yamada, a perennial errand boy who has no sense of existence in the class and is at the bottom of the school class. The strongest and the weakest two people met by chance, and one day they exchanged their lives because they looked exactly the same.