Su Ningxue, the young leader of the Qingqiu Fox Tribe, ventures alone into the dangerous Canglang Mountains in search of the "Ice Soul Grass" that can cure the tribe's stubborn illnesses. It happened that the young leader of the wolf clan, Ling Cang, encountered a rebellion from his own clan. He was seriously injured and turned into a human form and fell in the snow. He was rescued by Su Ningxue who accidentally entered. One is a cold fox girl who holds the hope of the ethnic group, and the other is an unruly wolf king who is deeply trapped in the vortex of power. They are supposed to be incompatible alien races, but they are entangled endlessly because of this unexpected encounter.
Su Ningxue's fox aura would have triggered the instinctive rejection of the wolf clan, but unexpectedly soothed the restless wolf soul in Ling Cang's body; Ling Cang's wolf clan pressure could intimidate all beasts, but it had no lethality against Su Ningxue. As they get along more closely, the two secretly fall in love, but ethnic feuds, the conspiracy of the rebels, and the secrets behind the Ice Soul Grass follow one after another. In order to seize the power of the wolf clan, the rebels took advantage of the grievances between the fox clan and the wolf clan to design a frame-up, pushing Su Ningxue into the position of a public enemy of the wolf clan. In order to protect his sweetheart, Ling Cang did not hesitate to make the entire wolf clan an enemy; in order to save Ling Cang, Su Ningxue was willing to expose the secret skills of the fox clan and exhaust her cultivation. When the blue wolf roars in the moon and the fox cries in the snow, can they break the shackles of feud, uncover the secrets of the alien race that have been hidden for thousands of years, and protect this cross-race love in the light of swords and shadows?
