At the end of the Chu Dynasty, Beidi came under pressure, and all the members of the Zhenbei General Mansion were falsely accused and imprisoned. Shen Jinghong, the legitimate daughter, disguised herself as a man and escaped, and met the mysterious drug dealer Rong Zhi in the black market. On the surface, Rong Zhi is a doctor who helped the world, but in fact he is an orphan from the former dynasty who has been dormant for many years. He secretly controls the intelligence network "Tianji Pavilion". The two teamed up to forge their identities. Shen Jinghong assumed the pseudonym "Master Jinghong" and became the new Minister of Household Affairs, while Rong Zhi entered and left the Taiyuan Hospital as the "Heir of the Medicine Saint", each playing chess games in the court and the arena.