The Dacheng Dynasty seems to be prosperous and prosperous, but in fact there are undercurrents. The unpopular prince Murong Sheng struggled to survive in the cold palace and witnessed the cruelty and darkness of the palace. In order to take revenge and change his own destiny, he began to plan step by step and carefully. He makes allies, exploits enemies, and grows in the struggle for power. After entering the palace, Shen Qingyi, the legitimate daughter of the prime minister, gradually became involved in this war without gunpowder. She and Murong Sheng not only used each other, but also had sincere feelings. Lu Huaiyuan, the general's son, always stood firmly by Murong Sheng's side and became his most loyal comrade-in-arms. In the whirlpool of power struggle, everyone is helpless and they will pay any price for survival, ambition and love. In the end, can Murong Sheng succeed in revenge and ascend to the throne? What fate will Shen Qingyi face? Can Lu Huaiyuan protect his loyalty and faith? Everything will be revealed in the bloody palace struggle.