To join Adrien in Shanghai, Marinette is going to visit her uncle Wang who is celebrating his anniversary. But, as soon as she arrives in China, her purse gets stolen with Tikki inside, whom she needs to secretly transform into Ladybug! Without money and alone in the immense city, Marinette accepts the help of a young and resourceful girl, Fei. The two girls will ally and discover the existence of a new magical jewel, the Prodigious. Hawk Moth, also present in Shanghai, seeks to finding it since...

Three different stories of youth set in different cities of China.

Years into the future and the human race has been defeated several times by the new ruling force of the planet: "kaijus". And the ruler of that force is Godzilla, The King of the Monsters. Humanity is in such defeat, plans to leave the planet have been made, and several people have been chosen to look at a new planet to see if it is inhabitable. Realizing it's not, though, the human race resorts to plan B: to defeat Godzilla and take back their planet.