Liu Yuan, a modern history professor of the Three Kingdoms, was studying the bronze sword next to the statue of Liu Bei in the Wuhou Temple in Chengdu when he was suddenly struck by lightning. When he opened his eyes, he found himself in a dilapidated thatched hut in Zhuoxian County in 183. He was wearing a coarse mat apron and an old voice heard in his ears, "Bei'er, it's time to go to the market to sell mats" - Liu Bei's mother was still there. In a panic, the complete historical memories of the Three Kingdoms flooded into his mind. He tightened the woven mat in his hands, recognized the reality that "he had become the 23-year-old Liu Bei", and secretly made up his mind: In this life, he would reverse the fate of "displacement" starting from Zhuoxian.