The spiritual energy of heaven and earth gave birth to a huge energy mixed bead. Yuanshi Tianzun refined the mixed bead into a spirit bead and a magic pill. The spirit bead was reincarnated into a human being, which could be of great use when helping Zhou to defeat Zhou; and the magic pill would give birth to a demon king, which would bring disaster to the world. Yuanshi Tianzun activated the heavenly robbery spell, and three years later, the sky thunder would come and destroy the magic pill. Taiyi was ordered to give birth to the spirit bead on Nezha, the son of Li Jing's family in Chentangguan. However, by mistake, the spirit bead and the magic pill were swapped. Nezha, who was supposed to be the hero of the spirit bead, became the great demon king of the world. Nezha, who was naughty and mischievous, had only a heart to be a hero. However, facing the misunderstanding of the magic pill and the coming of the sky thunder, is Nezha destined to become a demon right away? Where will he go?