The Wei Dynasty was prosperous on the surface, but in fact it was decadent. Shen Liuying was originally the daughter of a guilty minister, but she was relegated to a lowly position and became the number one courtesan in the capital. She used her stunning appearance and exquisite mind to get around among the powerful, and established an intelligence network called "Tingfeng Tower". Xiao Jingci is the prince of the former dynasty who lost his country. He bears the hatred of his country and his family. In order to avoid being hunted and killed, he hides his name and sneaks into a brothel to become a violinist.
The two first met during an assassination mission targeting a powerful traitor, and after testing each other out, they reached an alliance. There is no golden finger, it all relies on step-by-step calculation. Shen Liuying waits in the light, dances with long sleeves, and steals the secrets of the court; Xiao Jingci contacts the old troops in the dark and accumulates troops. From the beginning, the two used each other and even were wary of each other, to knowing each other through life and death. They fought down corrupt officials, alienated traitors, and finally even reached out to the supreme throne. In the treacherous power struggle of Boyun, a classical legend about redemption and revenge is written.
