One possible title could be 'The Little Competition in Miraculous Paris'. It gives a clear indication of the setting (Paris from Miraculous Ladybug) and the main theme which is the competition.
A great title might be 'The Miraculous Little Competition: A Fanfiction Adventure'. It combines the idea of the Miraculous Ladybug series, the little competition, and the fact that it is a fanfiction, all while also suggesting an exciting adventure is about to unfold within the story.
How about 'Miraculous Ladybug: A Rivalry in the Little Competition'? This title emphasizes the Miraculous Ladybug universe and also highlights that there will be some sort of rivalry within the competition, which can be quite engaging for readers.
Perhaps 'Tiny Ladybug in the Miraculous World'. This title not only indicates the small size of Ladybug but also emphasizes that the story is set within the Miraculous Ladybug universe. It can attract readers who are fans of the original series and are interested in seeing a new and different perspective on it, like the situation where Ladybug is turned tiny.
There could be a competition among the superheroes and supervillains to see who can use their powers more creatively. For example, Ladybug might have to compete with a new villain who has a unique power related to illusions. And Chat Noir could be in a side - competition to see who can be the most charming while still being heroic.
One idea could be that Marinette (from Miraculous Ladybug) discovers a magical seashell that transports her to the underwater world of The Little Mermaid. There, she meets Ariel and they team up to fight an underwater villain who is stealing the magic of both the surface and the seabed. Maybe the villain is after the Miraculous and Ariel's voice for some dark purpose.
One possible title could be 'Nathanael and Juleka: A Miraculous Love'. It's simple and straightforward, clearly indicating the two characters from Miraculous Ladybug and that the story is about their relationship.
One idea for a Miraculous Ladybug competition fanfiction could be a design competition in Paris. Marinette enters, hoping to show off her latest fashion designs inspired by the Miraculous heroes. However, Chloe also enters, determined to win by any means necessary. As the competition unfolds, there are mysterious glitches in some of the designs, which Ladybug and Chat Noir suspect might be the work of an akumatized villain. They have to balance their superhero duties with helping Marinette succeed in the competition without revealing their identities.
A new villain could have a weapon that specifically targets Ladybug's powers. When she tries to use her yo - yo or her powers of creation, it backfires and causes her harm. This would force her to rely on her wits and Chat Noir more than ever. They would need to find a way to neutralize the weapon and heal Ladybug.
One idea could be a story where Mylene uses her acting skills to help Ladybug and Chat Noir in a different way. Maybe she pretends to be a decoy to draw out an akumatized villain. It could show her courage and her ability to think on her feet.
A really interesting fanfiction idea could be that Lila and Marinette switch personalities for a day. This would be a comical yet thought - provoking situation. Lila would have to deal with Marinette's responsibilities and kindness, while Marinette might struggle with Lila's devious ways. It could lead to both of them having a new perspective on each other.
One idea could be that the Miraculous are actually ancient supernatural artifacts with their own spirits. For example, the Ladybug Miraculous could be linked to a nature spirit that gives the holder powers related to life and growth. The Cat Miraculous might be tied to a shadow spirit, allowing for stealth and chaos - related powers. This would add a whole new layer of mystery and magic to the Miraculous Ladybug universe.
In a fanfiction, the Akumas from Miraculous Ladybug could start to appear in the Avengers' world. The Avengers are initially confused by these strange creatures but quickly realize they need to work with Ladybug and Cat Noir to stop Hawk Moth, who has found a way to cross dimensions. The combined forces would make for an exciting story, with each character bringing their unique abilities to the fight.