Li Si was a famous prime minister of Qin Dynasty. He has achieved a lot, and his first half of his life was the apprentice. But he also has a biggest stain, that is, he killed Fu Su and indirectly destroyed Qin. Under the inducement and threat of Zhao Gao, he succumbed to Zhao Gao's request to tamper with his will, and Hu Hai ascended the throne smoothly. Finally, he was beaten to confess and committed suicide.

Li Si was an official in Chu in his early years and had his own ideas. He wants to contribute and have more rights. In order to achieve his goal, he resigned from his official position and went to Qi to study. After finishing his studies, Reese pondered over it. He felt that the king of Chu had no ambition and had no future in Chu, so he turned his attention to Qin.

Li Si and Han Fei are classmates, both of whom belong to Xunzi. Han Fei and Li Si are both legends. Han Fei's Han Fei Zi is immortal, but Li Si's official position is far greater than Han Fei's, and his writing style is not inferior to Han Fei's. Li Si's wisdom is also the second-in-command of Qin State.

Li Si has been assisting Qin Shihuang. At that time, only Qin Shihuang was worthy of his assistance. Until the unification of the six countries, Reese put forward many ideas, made great contributions to governing the country, and was a well-deserved founding hero. He is also loyal to Ying Zheng. Qin Shihuang appreciated him very much, so his descendants followed him in the apprentice.

However, because he was too greedy for power, he was bullied and used by Zhao Gao, eventually killing Fu Su and letting Hu Hai succeed to the throne smoothly. Later, in order to prevent the news of usurpation from leaking out, II and Zhao Gao arrested Reese and coerced him into saying that he deliberately tampered with Qin Shihuang's will and forced him to confess. In the end, Li Si was executed, and all three families of Li Si were destroyed.