Gu Yi, a modern history enthusiast, transmigrates into the chaotic late Han Dynasty just as the warlord coalition gathers at Suanzao to overthrow the tyrant Dong Zhuo. Eager to serve a wise lord, he approaches the alliance only to be brutally mocked and expelled by Yuan Shu for his lack of noble background. Disgusted by the hypocrisy of the so-called righteous heroes, Gu Yi makes a bold decision: he defects to the enemy camp.

Walking calmly toward Sishui Pass, he utilizes his unique persuasive talents to bypass the formidable Xiliang Army and secure an audience with General Hua Xiong. Offering strategic insights that surpass even the famed advisor Li Ru, Gu Yi quickly proves his worth to the Dong Zhuo faction. In this altered timeline, he aims to reshape history, secure power, and unexpectedly finds himself on a path to marry Dong Bai, the beloved granddaughter of the Prime Minister.

Can one man's betrayal of the coalition save the Han Dynasty or cement a new era of dominance?