The time traveler Xu Shang fell into the eyes of Ying Zheng because of Nong Sang's policy, and he revealed the Qin court's power struggle in prison: Lao Ai was the king's knife to cleanse his relatives, and Zhao Ji was nothing more than a pawn. He pointed out that the hegemony of Legalism would lead to a dead cycle, and proposed the right way of governing the country of "Confucianism on the outside and Legalism on the inside, and parallelism of hundreds of schools of thought". This not only solved the difficulty of welcoming back the Queen Mother, but also pointed out a way for the First Emperor to survive after unification, and he became a key chess piece in the secret plan of the King of Qin.
