Thousands of years ago, Cangwu Mountain connected the mortal world and the Nine Heavens. The trees in the mountain reached to the sky, and it was the place where the gods lived. Su Wu, the goddess who guards the mountain, uses her soul to nourish Cang Wu's spiritual veins, and makes a pact with Cang Heng, the demon king who guards the abyss, to stay together, promising to watch the frost and snow in the mountains together year after year and never be separated.
The heaven is afraid of the power of the demon king, fabricates the crime of the demon clan causing trouble to the people, sends down the punishment to encircle and suppress the Abyss Prison, and threatens Su Wu with the lives of thousands of mortals under Cangwu Mountain. With creatures from the three realms on one side and her beloved on the other, she was forced to go to the abyss with her sword and cut off Cang Heng's demon bones with her own hands, sending him to reincarnation and purgatory, erasing all memories of their love.
Su Wu stayed alone in Cangwu Mountain. She stayed awake for thousands of years. She guarded the deserted sacred mountain every day, hugging the remaining half of the spiritual tree, and endured the frost and wind every night in endless regret. The world called her the "Sleepless Goddess". As time goes by, Cangwu's spiritual energy is gradually drying up, Jianmu is on the verge of withering, and her own divine energy is also constantly dissipating.
Hundreds of years later, Cang Heng, reincarnated as a son of a noble family in the human world, returned to Cang Wu to find a lost old dream. When he saw Su Wu for the first time, he felt an inexplicable heart-breaking sourness in his heart. Even though he had never met him before, he couldn't help but get closer step by step.
The dusty memories of the past are slowly revived along with the old things in the mountains. The conspiracy of the heaven, the breakup with love as the blade, and the difficulties hidden under the punishment of heaven are revealed one by one. Cang Heng remembered the pain of cutting out the bones, but could not forget the love deep in his heart; Su Wu was burdened with the sin of hurting others with his own hands and did not dare to rush to meet again calmly.
The rules of heaven lie between two people. If love is restored, Cangwu Mountain will collapse immediately, and the mortal world will be annihilated; if they are separated again, the two will be trapped in the torment of missing each other forever.
Frost and snow fall every year on Cangwu Mountain, but only one person stays awake all night.
The so-called deep love refers to the regret of killing each other, the obsession to transcend reincarnation, and the courage to share destiny with each other despite knowing that there is no solution.
In order to protect the common people, the goddess who guards the mountain severely injures her beloved Demon Lord with her own hands, and guards Cangwu Mountain alone for thousands of years. When he comes back, the two of them will continue a sadomasochistic romance entangled in love and hate in the shackles of fate.
Concept: Fairy Tales