It tells the story of Sho Ijuin, the legendary leader who manages a delinquent team with more than 1,000 delinquents, and Tatsuto Yamada, a ten thousand year old errand boy who has no sense of presence in the class and is at the bottom of the school hierarchy. The strongest and the weakest two.It’s a comedy story about people who met by chance and exchanged their lives one day because they looked exactly the same.