The Dajing Dynasty was in turmoil, with the throne vacant and kings vying for power. Shen Qingci (played by Li Qin), the daughter of the general who ruled the country, was reduced from the princess of the general family to the daughter of a criminal minister because her father died in battle and the family was wronged. In order to clear her grievances and find out the truth, she entered the palace anonymously as a maid, but she was involved in the whirlpool of the prince's inheritance.
In this chess game of power, she dealt with various forces:
- The seventh prince Xiao Jinyi (played by Zeng Shunxi), who looks gentle but is actually very scheming.
- Zhao Chengyuan (played by Chen Zheyuan), the rebellious but gradually falling in love with the Northern Crown Prince
- Gu Nanzhou (played by Gong Jun), the Marquis of Jing'an who has a large number of troops and an unpredictable position.
- The fourth prince Xiao Jingchen (played by Zhang Wanyi), who comes from a humble background but is extremely ambitious.
- Xiao Yanqing (played by Ren Jialun), an orphan from the East Palace who is weak but extremely intelligent
- Yan Xun (played by Xiao Zhan), the prince of Northern Yan who is a hostage from an enemy country and is hiding a secret.
- Xie Wujiu (played by Wang Yibo), the cold-faced commander of the Supervision Department
- The Ninth Prince Xiao Jing (played by Xu Zhengxi), who looks dissolute but hides loyalty.
- Lu Yunzhou (played by Zhang Linghe) is a new top scholar and a young powerful official whose life experience remains a mystery.
As the truth gradually emerged, she discovered that her father's death was closely linked to the deepest secrets of the dynasty. To be a chess piece or a chess player? In this power game with the country at the center, how will she, as a woman, shake the foundation of a centuries-old dynasty and compose a thrilling epic of Huang Quan?
