Renliuge, who specializes in the world of assassins, takes on a high-priced mission - to assassinate Ping Xihou. Zhao Qingyue, the master of Renliu Pavilion, went to the palace alone to assassinate Ping Xihou. Unexpectedly, she was poisoned by the previous dynasty and was trapped in the palace. While being involved in a lot of fog, as one gets closer to the truth, one after another the past events gradually surface...
During the Tianqi period, the Song family was forced to rebel and changed their country and surname. The eldest princess's widowed daughter carries a blood feud and embarks on a road of revenge step by step. The wind, flowers, snow and moon are like butterflies crossing the sea, left behind and become an insignificant drop in the vast world. Only the hatred and indifference of the country and the family are left behind, and they have never seen the light of day. Nothing can escape fate, and everything has its own destiny. The pushers of fate are everywhere. Who is taking the right path...