Haibao is the guardian of Rainbow City, a spirit who helps humans with supernatural abilities, capable of rescuing people. He appears simple and adorable, yet beneath his憨厚 exterior lies great wisdom. One day, the puppet planet sends a破坏者 named Chou Chou. As the guardian of Rainbow City, Haibao engages in battle with Chou Chou, forming one of the main conflicts in the story. However, Chou Chou is not simply a villain; he comes from an alien planet that has fallen into crisis due to problems in its development model. The creatures of the puppet planet have lost their original genuine emotions, but deep down, Chou Chou harbors something beautiful. In the end, he is moved by Haibao and the people of Rainbow City.