Shen Wei, an inconspicuous maid of the Huanyi Bureau, was drawn into the power vortex between the prince and the King of Qi at a fateful night banquet. Everyone thought she was a pawn, a discarded piece that could be sacrificed at any time. However, when the poisonous wine dagger and lies intertwined into a dragnet, Shen Wei smiled. She uses her body as bait, breaks the situation, dances on the tip of the knife, and survives in death. This deep palace is not her cage, but her chessboard.