He is akumatized into The Easer, a villain that can stop time and make every hard thing to do easy. On Heroes Night, a rather naïve Adrien is stuck in his house after he is grounded for not telling his father he was a superhero. Will our heroes be able to handle a villain this big? Gabriel sees that Cat Noir is Adrien. The scarlet akumas form a giant one and akumatize Lady Reflektion into a giant even bigger than the Eiffel Tower.
However, a strange force de-akumatizes every villain and that is Mariya Couffaine/Crownfish, who has the fish miraculous which has the power of forces that can de-akumatize every villain.
Will she fight Anti-Kwamibuster as Lady Fortune or will Anti-Kwamibuster press the button of evil? Marinette is going to transform but Anti-Kwamibuster swaps her earrings for an akumatized Ladybug earrings. When Juleka’s sister comes to live in Paris, she gets akumatized into Anti-Kwamibuster after Chloe pranks her with paint balloons. Her secret will be revealed and she will have to move. And even an akumatized version is a hero, or is it? Finally, the Ladybug earrings are picked up by Gabriel Agreste and he swaps them with the Lady Fortune Earrings. Juleka’s sister, Mariya Couffaine, comes to live in Paris but also has a miraculous secret.
A new akumatized version of Marinette appears as a giant. Another Heroes Day is a disaster like the last one. But she now knows there are more miracle boxes around the world. Marinette faces more problems even with her own crush and sidekick and this is making her gullible and easy to akumatize.