Laure Filiu

Marinette and Adrien, two Parisian teenagers, are entrusted with powerful jewels in order to transform into superheroes Ladybug and Cat Noir. But neither hero knows the other's true identity — or that they're classmates!

Miraculous holders from another world appear in Paris. They come from a parallel universe where everything is reversed: the holders of the Ladybug and Black Cat Miraculouses, Shadybug and Claw Noir, are villains, while the holder of the Butterfly Miraculous, Betterfly, is a superhero.

Three secondary school students secretly fight the ghosts that haunt their city.