She exchanged three years in the cold palace for his words of "I believe in you." In her previous life, she was the daughter of a historian, and was falsely accused of collaborating with the enemy. Now Shen Zhiyao is dead. Holding the fragments in his hand, he watches the stars and makes suggestions, quietly reversing the fate of the country under the iron-blooded rule of the prince Xiao Yunzheng. When the old minister Zhou Yunxiu was killed step by step, the queen's sister Su Wantang protected the situation with her life, the Zhenbei general Lu Huaijin hid the iron-blooded truth, and the national counselor Pei Zhao used celestial phenomena as bait, she finally burned all the secret scrolls on a snowy night, just for him to take a look at the blood-stained star map. And he finally said: I believe you.