Xiao He fell ill because his father was plotted against him by the Liu family. He unexpectedly entered the palace and became a royal guard. Since then, he has been trapped in layers of troubles and traps by the Liu Cheng clan. She initially established a reputation for her martial arts skills, but was involved in an unjust case of leaking secrets from the border defense map designed by Liu San and was imprisoned. In a desperate situation, Xiao He and Chen Sheng teamed up to uncover the secrets of the Liu family's treasonous conspiracy. They used the emperor's trick to enter the prison, broke into other courtyards at night, captured the rebels, and intercepted evidence of the crime. In the end, the injustice was cleared up, the Liu Group was destroyed, and Xiao He was promoted to the captain of the Yulin Guard for his merits. He was in charge of three thousand forbidden troops and became the emperor's most trusted right-hand man.