After rebirth, Shen Qingci decided not to be a chess piece at the mercy of others. She used her past life memories to cleverly deal with her stepmother's frame-up and her concubine's scheme, and preserved the inherited skills and status left by her biological mother. In order to seek shelter and allies, she designed to get close to Xiao Jingheng, the seventh prince who was at a disadvantage in the fight for the throne but was thoughtful. The two went from testing each other and cooperating on interests to gradually understanding each other and forming a solid alliance. Shen Qingci relied on his precise grasp of people's hearts and information from his past life to make strange moves on Xiao Jingheng's path to seize the throne and his own revenge, resolving fatal crises one after another. In the end, he not only killed his enemies, but also helped Xiao Jingheng ascend to the throne. Shen Qingci also grew from a family chess piece that could be sacrificed at any time to a female counselor who could rule the world alongside the emperor.