Emperor Qin's Master, Did You Assist This Overlord Fusu?

Lin Xuan traveled through the Great Qin Dynasty and became a hangout in Fusu Mansion, waiting to die. When I opened my eyes, it was the beginning of hell: Fusu was about to be demoted to the border by the First Emperor, the First Emperor was about to suddenly die on his eastern tour, Zhao Gaolisi was sharpening his sword and preparing to falsely pass on the imperial edict, and Hu Hai, the prodigal son, could destroy the Qin Dynasty in two years. What's even worse is that his current boss, Fusu, is an indecisive, soft-eared virgin who even counted money for someone who was betrayed. Doesn't this script lead to death? At this moment, the Imperial Master System was activated: assist a prince and make Da Qin stronger, and he will be rewarded. Lin Xuan looked at Fusu in front of him, who was being sold and still helping to count the money, and took a deep breath. I have no choice but to bite the bullet. But what he didn't expect was—— The eldest son, who was despised as "weak" by the civil and military officials of the Manchu Dynasty, changed overnight under his training. In the court, Fusu overturned his foolish words yesterday in front of the First Emperor, saying that "water can carry a boat, but it can also overturn it". The whole court was shocked. Faced with the questioning of his mentor Chun Yuyue, Fusu choked with one sentence and turned pale: "Since Teacher thinks that the nobles of the Six Kingdoms will not rebel, why don't you personally advise your father?" Chunyu Yue was petrified on the spot. From then on, the submissive Fusu of Da Qin disappeared. Instead, there was Fusu, an overlord who was decisive in killing and dared to challenge the First Emperor! Zhao Gao: "I didn't lose to Fusu, but to Lin Xuan." Chunyu Yue: "I am Fusu's teacher! Why does Fusu want to worship Lin Xuan as his teacher?!" The First Emperor: "For my son to be so outstanding, Lin Xuangong is indispensable. This person should be the master of the Emperor of Qin."