Xiaozhi and Pikachu and other companions are on their journey. One day, the Pokémon Volkanian fell from the sky and was forced to be locked together with Xiaozhi. Volkanian lives with Pokémon that have been hurt by humans, so he hates humans very much, but this magical chain makes them inseparable, and the wonderful story begins. Xiaozhi and Pikachu will start a new adventure together... On the other hand, in the super mechanical city of Azoth Kingdom, Minister Jarvis got the ultimate invention he has been pursuing for many years - the artificial Pokémon Magearna born in Azoth Kingdom 500 years ago. It is said that there is an unknown power called "Soul Heart" in Magearna's body. The greedy and evil Jarvis intends to use this power to rule the kingdom. How will Xiaozhi and Volkanian resolve their rifts? What is the origin of Volkanian and Magearna? How will they fight Jarvis together to save the Kingdom of Azoth? What will be the final fate of Magearna? The greatest battle in the history of Pokémon is about to begin!