After the chaos of the shadows, the three realms temporarily returned to peace, and Nezha and Ao Bing practiced and guarded each other. Mysterious stars rise from the depths of the universe, disrupting the spiritual energy of the three realms, making heaven vigilant and the world panic. Nezha faced the choice between exploring the stars and protecting Chentangguan, and finally embarked on the journey with the support of everyone. He reunited with Yang Jian and discovered that the stars were sealed by ancient forces, which attempted to revive and rule the three realms. The three realms are preparing for war, and the dark forces at the seal are constantly attacking. Although there are reinforcements from all walks of life to jointly resist, there are still many crises. Nezha's true spirit awakens to suppress the dark forbidden arts. Everyone explores and learns that the "source of light" in the mysterious space outside the three realms may be able to break the situation. So Nezha, Ao Bing, and Yang Jian embark on an adventure. They go through difficulties and obstacles such as fog monsters, strange rivers, and castle puzzles in the mysterious space to find the three keys that open the passage to the "source of light."
