Shen Ninghua, an orphan from the former dynasty who was burdened with a blood feud, entered the palace under a pseudonym to seek revenge, but was accidentally involved in the machinations of Xiao Jue, the powerful Marquis of Jing'an. He regards her as a chess piece, and she uses his power to make progress step by step. On the thorny road of mutual testing and exploitation, love and hate quietly breed. When their identities are exposed, their past feelings turn into sharp edges, and misunderstandings and suspicions push the two into a desperate situation. On the night of the palace coup, she offered him her body as bait in exchange for a glimmer of life, leaving him to sit thousands of miles away and hold on to the endless regret of never losing his true love. This is a tragic song that begins with machinations and ends with sacrifice, telling the story of the involuntary struggle between fate and human nature in troubled times.