A graduate student in the Department of Modern History accidentally traveled to the end of the Warring States Period and became the half-brother of Qin Shi Huang Ying Zheng. Facing the upcoming war of unification and his brother's suspicion, Cheng Wei secretly contacted Jianghu forces by relying on historical knowledge that transcended the times and the way of thinking of modern people. He used Mohist organ techniques to improve the craftsmanship of the Qin army, and used Taoist health techniques to assist Ying Zheng in consolidating his power. In the war to unify the Six Kingdoms, Cheng Wei dealt with the intrigues of the court and the disputes in the rivers and lakes, and formed a secret alliance with Ying Zheng to jointly fight against the "Destiny Pavilion" composed of the remnants of Confucianism and the survivors of the Six Kingdoms, and prevent them from overthrowing the new Qin Empire. After the reunification of the six kingdoms, Cheng Wei discovered the connection between Ying Zheng's obsession with immortality and the legend of the "elixir" in the world. The two brothers started a final game at the pinnacle of power. In the end, Cheng Wei chose to give up the imperial position and jointly searched for the mystery of immortality with Ying Zheng. The two joined hands to travel across the rivers and lakes for thousands of years, witnessing the rise and fall of Chinese history.
