She could also discover that there is a connection between her family's past and the origin of the Miraculouses. This could lead her on a journey to uncover the truth, which might involve traveling to different parts of the world. Along the way, she meets new allies and enemies, and has to use her wits and the powers she discovers to survive and protect the Miraculouses.
Maybe Emma starts to have dreams that are actually premonitions of future akuma attacks. She then has to convince Ladybug and Chat Noir that her dreams are real without revealing too much about herself. Or, she could find a way to create her own superhero identity and team up with Ladybug and Chat Noir, but struggles with the responsibility that comes with it as she is still a young girl.
One plot idea could be that Emma and Charlotte discover a new Miraculous. They have to figure out how to use it while keeping it a secret from Hawk Moth. Maybe they face challenges like a new villain who is specifically targeting them because they are so close to Ladybug and Chat Noir.
A time - traveler from the future could also be an interesting main villain. This character could have seen a dark future where the Miraculouses were misused and has come back to the present to destroy them all. But in his quest, he doesn't care who gets hurt, and Emma has to stop him from changing the past and future in a bad way.
Another idea is that there is a new threat in Paris that specifically targets the families of the Miraculous holders. Emma, Louis, and Hugo are not yet old enough to be full - fledged heroes, but they have to step up to protect their families. They start by investigating the strange happenings around their home and school. They discover that the villain is using a new type of akuma that can control people's memories. So they have to find a way to stop it without getting their memories erased.
One idea could be a story where the Peacock Miraculous has a unique malfunction that causes it to create unexpected akumas. For example, instead of creating the usual villains, it creates akumas that have the power to spread positive emotions but in a chaotic way that still disrupts Paris. Another idea is a fanfiction where the holder of the Peacock Miraculous has to team up with Ladybug and Chat Noir to fight against an ancient evil that is specifically drawn to the power of the Peacock. This could involve exploring the history of the Miraculous and its connection to this new threat.
One great fanfiction is 'The Secrets of Gabriel Agreste'. It delves deep into his motives and the backstory that we don't often see in the show. It gives a more complex view of his character.
One idea could be Multimouse having to team up with an unexpected ally, like a villain who has a change of heart for a short time. Another could be Multimouse getting lost in an alternate dimension and having to find her way back while facing new challenges.
One idea could be Ladybug and Chat Noir having a heart - to - heart conversation in bed after a particularly tough battle. They could share their fears and insecurities that they usually hide behind their superhero personas.
One idea could be a story where the child of Ladybug and Chat Noir discovers their parents' secret identities by accident. Maybe they find a hidden Miraculous box in the attic and start to figure out what it means.
For a Miraculous Ladybug class fanfiction, a plot about a cursed object in the classroom could be interesting. The object spreads negative energy, causing the students to fight and argue more. Ladybug and Chat Noir suspect that it's an akuma - related thing, but they can't find the akuma. As they investigate, they discover that it's actually an ancient cursed item that was accidentally brought into the class. They have to find a way to break the curse without revealing their identities, and also deal with the fact that their classmates' relationships are falling apart because of the curse.
Maybe there's a werewolf akuma. Hawkmoth takes advantage of an already existing werewolf in the city and akumatizes it. This werewolf - akuma has enhanced powers and is causing chaos. Ladybug and Chat Noir must figure out how to defeat it. They might need to discover the true identity of the werewolf to break the akuma's hold. It could be a person who was bitten recently and is struggling to control their new form.