Modern historian Zhao Huaijin traveled back to the eve of the Jingkang Disgrace, used the prince's body to regain the imperial power, and formed an alliance with Su Yan, a secret girl from Jiangnan who was lurking in the palace, to secretly reshape the imperial army and cut off the traitors. When Tong Guan conspired with the Jin people to dedicate the city, Yelu Yunge's betrayal and loyalty were intertwined, and Zhou Boyang's belief in civil rule was crushed by the iron-blooded reality - he wanted to use blood and fire to rewrite history and make the Jin people kneel under the Bianliang City and ask for a promise of immortality.