When Emperor Li Yuan, the great ancestor of the Tang Dynasty, established the foundation, it was passed down to the fourth emperor, Emperor Gaozong of the Tang Dynasty. Wu Zetian came to the court and proclaimed that Emperor Gaozong passed away and established Ruizong. Six years later, Wu Zetian simply deposed Ruizong and claimed to be emperor, and changed the country's name to Wu Zhou. After more than 70 years of Zhenguan rule, the Tang Dynasty was recuperating and prospering, and the country was prosperous. During the reign of Wu Zetian in the Tang Dynasty, the Eastern and Western Turks were divided into their respective factions due to the incompatibility between Jili Khan and his brother Shibi Khan. But Bi Mi sent people to intercept him on the way, killed him, and then pretended to be a specially dispatched mission, colluding with officials from the DPRK and China to secretly commit crimes in Luoyang, Kyoto, and caused many murders and secret cases. A young man in the 21st century was involved in a car accident due to an accident. Back in 690 AD in the Tang Dynasty, when Wu Zetian was ruling the world, he accidentally replaced Su Wuming, who died of illness. He is intelligent, explores things, observes logic and reasoning, and solves all kinds of difficult cases.