Xiao Yao, a college student in the Department of Modern Literature, accidentally transported his soul to Yang Guang, Emperor Yang of Sui Dynasty in the early days of his accession to the throne. He possesses Yang Guang's memory fragments and instincts, but his dominant thinking is that of modern Xiao Yao. He did not want to defeat the country from the beginning, but brought modern people's knowledge, values (some naive, some extreme) and misunderstandings of historical "prophets" (trying to "correct" or "accelerate" history), combined with Yang Guang's own character of success-loving, impatient and suspicious, to make a series of decisions and actions that seemed "reasonable" or "innovative" at the moment, but in fact laid the foundation for huge disasters and even directly triggered crises...
