Zhao Gao was the biggest promoter of the collapse of the Qin Dynasty and the first eunuch in power.

Zhao Gao was the eunuch of the Qin Dynasty, the first unified feudal dynasty in China history. Zhao Gao, a native of Zhao, came from humble origins. His father committed a felony and was sentenced to prison, while his mother, Zhao Gao, was punished as a civil servant. Later, Zhao's mother had sex with someone else and gave birth to Zhao Gao. After Qin Shihuang unified the whole country, the harem was enriched on a large scale, with as many as ten thousand concubines. The huge harem needs many eunuchs to serve, so castrated eunuchs are widely used in the court, and the eunuch system is gradually improved. At that time, in order to supplement the ranks of service personnel in the harem, some eunuchs of defeated countries were also included in the Qin court as trophies like beautiful women in the palace. After the Qin Dynasty destroyed Zhao, Zhao Gao was demoted as a eunuch. Because he was strong and proficient in law, he quickly gained the trust of Qin Shihuang and was appointed as an official of CRRC.

In the thirty-sixth year of Qin Shihuang, a meteorite landed in Dong Jun, which read "The first emperor died and fell apart". Soon, when the emissary of Qin Shihuang passed Huayin from Kanto at night, someone stopped the emissary with a jade wall and said,' Qin Shihuang will die this year!' Qin Shihuang was deeply disturbed by the successive events. He hurriedly ordered divination, saying that only by going out for a cruise can evil be turned into good. Qin Shihuang listened to the warlock. In the thirty-seventh year of Qin Shihuang, accompanied by his second son Hu Hai and Prime Minister Reese, he held a military parade in Beijing. Zhao Gao, as the commander-in-chief of CRRC responsible for the emperor's ride, traveled by car. When the car drove to Pingyuan Tianjin, Qin Shihuang suddenly became seriously ill. He felt that time was running out, so he urgently ordered Zhao Gao to send a letter to his eldest son, Fu Su, asking him to hand over the troops to General Meng Tian, and then rushed to Xianyang to handle affairs and inherit the throne. Before the imperial edict was promulgated, Qin Shihuang died of illness on the sand dune platform at the age of 50. Li Si, the prime minister, thought that the announcement of Qin Shihuang's death might cause chaos in the whole country, decided not to send him to the funeral in secret, and ordered Che Qi to speed up his trip to Xianyang.

Li's stratagem created a rare opportunity for Zhao Gao to implement the bait-and-switch plan. He knew that Fu Su, the eldest son of integrity, disdained himself, and Meng Tian, the general who mastered the relieving, was closely related to Fu Su. On the contrary, the second son, Hu Hai, taught himself calligraphy and law. Once Hu Hai succeeds to the throne, he will be highly valued. Zhao Gao decided to take the risk of detaining the posthumous edict of Qin Shihuang, and then planned Hu Hai's succession to keep his political position. In order to achieve his own goal, Zhao Gaoxian won the support of the powerful minister Reese, and then, together with Reese and Hu Hai, took the place of the first emperor's testamentary edict, made Hu Hai a prince, and viciously forged the testamentary edict that made Fu Su and Meng Huo commit suicide. Fu Su, a loyal minister, and Meng Tian, a hero of three generations, were forced to commit suicide after receiving the imperial edict and became victims of Zhao Gao's "Dune Plot".

After Zhao Gao succeeded to the throne, he returned to Xianyang as a winner, and then announced to the world that Qin Shihuang had died, calling himself Hu Hai and Qin Ershi in history. Zhao Gao, as the number one hero of Qin Ershi's coming to power, was naturally favored by Hu Hai. He was appointed secretary of the Secretariat and became a powerful person in the DPRK.

In order to stop all ministers and princes' doubts and dissatisfaction with the imperial edict, Zhao Gao and Hu Hai launched a ruthless killing. After Fu Su and Meng Huo, Meng _, right-hand prime minister Feng Qubing and general Feng Jie were all executed on trumped-up charges, and countless people were involved. At the same time, Zhao Gao has not spared all the royal princesses and princesses. Twelve princesses' slaughtered Xianyang City' and' Ten princesses died in Du'. Before being forced to commit suicide, the prince shouted innocence, and then he and his three brothers committed suicide with tears in their eyes. From then on, anyone who gives advice to the minister will be punished for libel, and what's more, those who look bad will also be punished. Everyone in the whole country is in danger and terror.

After killing every minister, Zhao Gao placed his cronies to fill the vacancy, so many important positions were held by Zhao Gao's cronies. Fooled by Zhao Gao, content with pleasure, Qin Ershi indulged in debauchery and politics, which created favorable conditions for Zhao Gao to run amok. At this time, the government ruled corruptly and the people's corvee was quite heavy. Coupled with the construction of Epang Palace and other huge projects, the people were destitute, and the Chen Sheng and Guangwu Uprising broke out. But Qin Ershi, blinded by Zhao Gao, knew nothing about the crisis of the situation and continued to live a dissolute and decadent life.

At this time, Prime Minister Reese was very worried about the crisis in the Qin Dynasty. Lisi made great contributions to Qin Shihuang's unification of the six countries and later, so he was highly valued by Qin Shihuang. Li Si is also a participant in the Dune Project, and Qin Ershi likes him very much. After the uprising of Chen Sheng and Emperor Guangwu broke out, based on his loyalty to the rule of the Qin Dynasty, Reese wrote to him many times to give advice, but to no avail.

Zhao Gao was worried that Qin Ershi would hold himself accountable after knowing the situation of the imperial court, and regarded Reese as an obstacle to his mastery of state affairs, so he took Reese as the target of attack. So Zhao Gao designed a trap to frame Reese. He told Li Si that thieves are rampant now, and I really want to persuade the emperor, but because the emperor lives in the palace, I have no chance to persuade him. Li Si also said that he wanted to find a chance to convince the emperor. Zhao Gao said it was his duty to give Reese a chance to discuss. So, Zhao Gao found some opportunities to make Qin Ershi happy and the most annoying troubles for Li Si to remonstrate. So repeatedly, Qin Ershi began to have bad blood with Li Sijin. With a genial smile, Zhao Gao was dissatisfied with Reese's failure to be king, so he slandered Reese's son and was associated with Chen Sheng and other insurgents. Qin Ershi's partiality led Zhao Gao to manipulate the torture process of Li Si, and finally got his wish and sent Li Si and his son to the execution ground. Li Sisan's family members were also killed by collective punishment.

After Zhao Gao killed Reese, the official worshipped the Prime Minister, and everything in the court was decided by Zhao Gao. At this time, the rebels were less than a hundred miles away from Xianyang. Facing the dangerous situation that the Qin Dynasty was about to collapse, Zhao Gao not only didn't think about saving, but wanted to take advantage of the situation to replace Qin Ershi and experience the glory of the emperor. In order to test the attitude of ministers to his usurpation of the throne, he directed a famous ugly play in history, called a deer a horse. Zhao Gao brought a deer to II, saying it was a horse. Qin Ershi thought Zhao Gao was joking, so he asked the ministers. Ministers were awed by Zhao Gao's arrogance. Some people say it's a horse, some people are silent, some people say it's a deer. Afterwards, Zhao Gao killed all the ministers who talked about deer.

The peasant uprising has seriously endangered the rule of the Qin Dynasty. Qin Ershi, who was lazy in politics, noticed this and was dissatisfied with Zhao Gao's long-term dictatorship. Afraid that Zhao Gao II would investigate his fault, he decided to strike first, used his influence inside and outside the palace, sent cronies to force Qin Ershi to commit suicide, and then manipulated the political situation, making Qin Ershi's son Gongziying the king of Qin. Qin Ying realized Zhao Gao's evil intentions, and after careful planning, he sent someone to ambush and assassinate Zhao Gao, ending Zhao Gao's sinful life.

How did Qin Shihuang's soul know that the iron-clad Daqin Jiangshan was destroyed by eunuch Zhao Gao?