When the son of a sinful minister lives in the deep palace, and when the golden branches and jade leaves enter the secular world, a period of twenty-one years of regular body changes begins.
On the 10th of every month, identities are reversed. Shen Jinghong used the princess's body to play with the rules of the court, silently accumulated strength, and took root in the south of the Yangtze River to gather strength and prepare for success; Shi Mingyue used his identity as a man to jump out of the palace wall and rise amidst intrigues, but lost power and went to the Turks. Eight years of hard work in the grassland has allowed her to completely abandon the harem mentality and grow into a master strategist who plans the overall situation.
Year after year, suspicion turns into trust, and partners become confidants. Even though they are far apart, the wonderful bond between them allows them to think on the same page and act in sync. The great rock was destroyed and the world was in chaos. The two hit it off and embarked on the road to founding a country.
The two parallel lines in the past are now standing side by side at the top of power. He was the emperor, and she was the co-queen. Relying on the special bond of twenty-one years, they created an unprecedented dual-power regime. An unexpected soul exchange ultimately changed the fate of the entire era.
