During the Dajing Dynasty, childhood sweethearts Xiao Che and Shen Qingli made a lifelong promise on the moat. He promised her the position of queen, and she accompanied him through the storm. Xiao Che is a remnant of the previous dynasty. His father rebelled and was defeated and killed. He became a prisoner. Only Qingli stayed with him and supported him with gentleness. Qingli's sister Shen Qingshuang transformed from a market pig butcher to a female general of the country. Her brother-in-law Murong Heng was in power. Her aunt Princess Anning was honored and became Qingli's most solid support. And Xiao Che's mother Su Wanqing, a traveler from another world, silently protects her with modern wisdom, but is unable to resist the torrent of fate. After lying dormant for several years, Xiao Che finally ascended to the throne, changed the Yuan Dynasty to Xuanzhao, and named Qingli as empress, fulfilling his youthful promise. However, on the throne, childhood trauma and the shadow of power breed extreme fear and suspicion. He is wary of being afraid of losing, and is pressing closer because of fear of the power of the Qingli family. Misunderstandings arose due to misunderstandings caused by treacherous ministers. The affectionate feelings in the past turned into cold suspicion. Qingli was banished to the cold palace, and her sister and brother-in-law died unjustly. The snow falls on the palace walls, and the hearts of old friends are broken. When the truth came to light, Xiao Che regretted it, but only the dying Qingli was left in the cold palace. A love that spanned childhood sweethearts, a sadomasochistic love entangled in the power of family and country, and finally ended up with the eternal regret of "gaining the world, missing her", leaving only the white snow on the palace wall, witnessing half a lifetime of obsession and regret.
