One possibility in Miss Fortune in Miraculous Ladybug fanfiction could be that she is a new villain. She might use her charm and wits to try and steal the Miraculouses. For example, she could pretend to be an ally to Ladybug and Cat Noir at first, only to double - cross them later when she gets close to the Miraculouses.
She could be a love interest for one of the main characters. Maybe Chat Noir falls for her charm, which creates some tension in his relationship with Ladybug. It would add a new layer of drama to the story.
Tikki and Plagg, the kwamis of Ladybug and Chat Noir respectively, could also be considered main characters in a sense. Their wisdom and powers are crucial in the story. In a Miss Fortune fanfiction, they might interact with Miss Fortune in unexpected ways, like giving her advice or even having some sort of special connection with her.
One interesting plot could be Miss Fortune having to team up with Ladybug and Chat Noir in a situation where they initially suspect her. For example, a new villain emerges who has the power to create illusions of past akumas. Miss Fortune's unique abilities might be the key to seeing through these illusions, but Ladybug and Chat Noir are hesitant to trust her at first.
In Miraculous Ladybug fanfiction, mind control can be a really interesting plot device. It often adds a layer of complexity and danger. Writers might use it to create new challenges for Ladybug and Chat Noir. For example, an akumatized villain could have the power of mind control, forcing the heroes to fight against their friends or loved ones under its influence. This forces the heroes to find creative ways to save the day without harming those they care about.
Alya as Volpina often brings a new dynamic to the fanfiction world of Miraculous Ladybug. She might have her own story arc that involves dealing with the power of the Volpina Miraculous in a different way than in the original show. Maybe she has to learn to control it better or use it to uncover secrets within the Miraculous universe.
In Miraculous Ladybug fanfiction, ice powers can add a whole new dimension. They might be given to a new character, perhaps a villain. For example, a character with ice powers could freeze Paris, creating a unique and challenging situation for Ladybug and Chat Noir to overcome. It could also be a power that a Miraculous holder temporarily gains, leading to interesting plot twists.
One creative idea is a crossover with the Jurassic Park world. Imagine Ladybug and Cat Noir having to fight dinosaurs while still maintaining their secret identities. Another is a crossover with the Alice in Wonderland world. The wacky and strange nature of Wonderland would make for an interesting backdrop for the Miraculous heroes.
One idea could be to create a Ladybug costume that is tattered and covered in fake spiderwebs to give it a spooky Halloween twist. You could also add some fake blood splatters to make it look like Ladybug has been in a battle. Another option is to make a dark version of the costume, with a black instead of red suit and purple spots.
A creative way could be through the power of friendship. In the fanfic world, the bond between Ladybug and Chat Noir and their friends could become so strong that it creates a positive energy field that weakens Hawkmoths. It's like the power of love and friendship in some magical stories that overcomes the evil force.
Well, how about this? Cinderella is actually an ancestor of Marinette. And Marinette discovers an old diary of Cinderella's that has some hidden secrets about the Miraculous. It seems that Cinderella had a connection to the Miraculous long ago. This discovery leads to a new adventure where Ladybug has to follow the clues in the diary to find a lost Miraculous that could be very powerful. Along the way, she meets characters who are like the ones in Cinderella's story, but with a Miraculous Ladybug twist.