Perhaps in the fanfiction, Chloe gets the Miraculous and has to team up with characters she doesn't usually get along with. This could lead to some really interesting character development as she learns to work with others and see their good sides.
One possible plot could be Chloe's journey of self - discovery with the Miraculous. Maybe she starts off using it for the wrong reasons, like for personal gain or to show off, but then realizes the true power is in helping others.
Another plot could be that Chloe gets the Miraculous and discovers a new threat to Paris that the other heroes haven't noticed yet. She then has to use her unique perspective and the power of the Miraculous to save the day, all while trying to prove to herself and others that she can be a true hero.
It could be a new villain created specifically for the fanfiction. Maybe someone who has a vendetta against Chloe and targets her because she has the Miraculous.
One idea could be Chloe's redemption arc in a fanfic. Maybe she starts to realize the error of her ways after a particularly harsh event. For example, she could lose her status among her peers and have to start from scratch to earn their respect. Another plot could be Chloe getting a new Miraculous and learning what it really means to be a hero. She might struggle at first with the responsibilities but grow into a great hero over time.
One interesting plot could be an alternate universe where Ladybug and Chat Noir have different powers. Maybe Ladybug has the power of ice instead of her usual creation abilities. Another plot could be a time - travel story where they go back to the very beginning of Hawk Moth's reign and try to stop him before he becomes too powerful. And there could also be a story where Ladybug and Chat Noir have to team up with their civilian selves to solve a mystery.
Well, one interesting plot could be about Ladybug and Chat Noir having to face a villain who can manipulate time. This would put their skills and relationship to the test as they try to outwit the baddie and protect Paris. Another plot might involve a new Miraculous holder emerging and how they interact with Ladybug and Chat Noir, whether it's as an ally or a potential adversary.
Well, one interesting plot could be the everyday interactions between Marinette and Adrien in a more fluff - centered way. For example, them having a picnic in the park and just sharing cute, innocent conversations. Another plot might be about the kwamis getting involved in the human's daily fluff moments, like Tikki helping Marinette bake cookies for Adrien in a really sweet and clumsy way. And there could also be a plot where the two heroes, Ladybug and Chat Noir, have a non - superhero related date, just enjoying each other's company without the threat of akumas.
One interesting plot could be their adjustment to married life while still dealing with the supernatural elements in Lucifer's world. For example, how they handle his devilish powers and the reactions of those around them.
Another storyline could be set in an alternate universe where Adrien and Chloe are actually siblings. This would completely change their dynamic, and they would have to navigate their new relationship while still dealing with the akuma attacks and the secrets of the Miraculous.
Another plot could involve the whole of Paris falling into a deep sleep because of an akuma's power. Ladybug and Chat Noir have to fight this akuma while also being affected by the sleepiness. Ladybug's Lucky Charm could be something related to waking people up, like a magical alarm clock. And throughout the battle, they have to overcome their own drowsiness and find a way to break the akuma's spell on the sleeping city.
One interesting plot could be an alternate universe where the Miraculous holders have different powers. For example, Ladybug might have the power of ice instead of her usual abilities. Another could be a story where the villains and heroes have to team up to face a greater threat. This would change the whole dynamic between them.
Well, one interesting plot could be Ladybug and Chat Noir taking a break at the spa during a lull in their fight against villains. They might have some deep conversations about their identities and the pressure they face while relaxing in the spa's soothing environment.