That night, the moon is frighteningly big. Instead of his brother, Zilu steps onto the bridge that was supposed to never appear. Zilu tells his brother not to go up the bridge. He swears on his life that he will protect the person who is the brightness of the sun. A farmer finds bones in a newly reclaimed land. When the farmer opens the scroll, the bridge appears and disappears. The words about the scroll spread fast, reaching the palace. The scroll is the work of a famous expert. Emperor bai sees himself stabbed to death by someone wearing a red raksha mask. After killing the emperor, the man steps on the bridge, disappears. A memorial to the emperor falls next to it. In other words, eight years later, the emperor will be stabbed. In order to protect himself, Emperor Bai orders the Ministry of Justice to set up an assassination team. He also recruits the children of the age of eight to join the team. The two brothers are also recruited.