The childhood encounter planted the seeds of love in the hearts of the two little boys. When they grew up, their identities changed, which made their relationship difficult. One was the future successor of the heaven, and the other was the cold-faced demon king of the demon world. The disparity in identity made their relationship go from here. At this time, the Three Realms are also facing a huge crisis. The demon king "Wuji" of the Demon Realm has created a clone and is absorbing the greed, anger and ignorance of the Three Realms in the human world. Once his true body breaks out of the Demon Realm, the Three Realms will be in chaos. Only the colorful stones used by Nuwa when patching up the sky can seal it, but The colorful stones have been scattered and turned into five pieces of gold, wood, water, fire and earth scattered in all directions. The emperor's grandson Li Zelin and the demon king Jiang Heng, as well as their close friends, embarked on the road to save the common people. The relationship between the two people also gradually deepened unknowingly, and they finally overcame many difficulties and were happy together.