Jinshi, a modern assassin traveled to ancient times and became a concubine of the Liu family, intertwined with the fate of King Xiao. In the court struggles and family disputes, she relied on wisdom and courage to survive. Her relationship with Prince Xiao went from hostility to ambiguity, and eventually became an indispensable presence in each other's lives. The novel depicts the emotional entanglements and growth process of the protagonists with delicate writing.