One day, Wang Ze suddenly received a mysterious package containing a complete collection of demon realm stories. As soon as Wang Ze opened it, a powerful Demon King emerged. In his quest to become the new master of the world of children's stories, the Demon King ruthlessly twisted and overturned all children's tales from ancient to modern times, both Eastern and Western, wreaking havoc everywhere. He even threatened Wang Ze to cooperate by handing over the characters of Old Master Q, Big Potato, and Mr. Chin, intending to turn them into villains. To protect Old Master Q and the others, Wang Ze bravely rose up to resist the Demon King. Unfortunately, he ultimately ended up being sucked into the demon realm storybook. In order to rescue their beloved friend, Old Master Q, Big Potato, and Mr. Chin had no choice but to plunge into danger, traveling through different times and spaces—into children's stories from all eras and cultures. On one hand, they searched for traces of Wang Ze; on the other, they worked to restore the world of children's stories to its original state, engaging in fierce battles with the Demon King!