Twenty years ago, the edict of the old Khan of the Ilkhanate was tampered with, and a conspiracy that could subvert both countries was buried in the dust.
Twenty years later, Yan Ciyi, the female shopkeeper of the border teahouse, sent half of the defense map to the case of Wang Yizheng of Shuochuan in order to save his kidnapped grandfather.
She thought she was just a chess piece, but she didn't know that the two jade pendants left by her mother contained secrets that could shake up the world - the original edict of succession, irrefutable evidence of collaboration with the enemy and treason, and the secret agreement between the late Zhou emperor and the usurper.
He thought she was just a useful intelligence broker, but he didn't know that this quiet and intelligent woman would become the only variable in his strategic chess game.
The prime minister who was in power, the ambitious noble son of the Khanate, and the truth that had been sealed in dust for twenty years came to light one by one——
She chose to stand side by side with him, hiding her shadow and moving the world in silence.
In today's chess game, who holds black and who holds white?