No. In the normal 'Miraculous' series, Cat Noir is a superhero, not a criminal. Fanfiction might deviate from the original, but the general perception of his character is heroic. So, just because it's a fanfiction doesn't mean he's a criminal.
There's a fanfiction called 'The Miraculous Origins'. It delves deeper into the backstory of the Miraculous. It explores how the Miraculous were created and how they came to be in the hands of the current holders. It's a long read but worth it for fans who want to know more about the lore of the Miraculous Ladybug Cat Noir universe.
Obviously, the Bad Bug would be one of the main characters. And probably the regular Ladybug and Chat Noir too, as they would be the ones to oppose the Bad Bug.
One popular theme is alternate universes. Writers often explore what would happen if the characters had different backstories or powers. Another theme is relationship development, like how Marinette and Adrien's relationship could progress in different ways. And of course, there are action - packed themes where the heroes face new and more powerful villains.
First, know the characters well. Lady Bug is strong - willed and Cat Noir is flirty yet brave. Then, come up with an interesting plot. It could be about a new villain. For example, you could create a villain who can steal their powers temporarily. Also, use vivid descriptions to bring the Parisian setting to life.
Well, there's a fan fiction called 'Love in the Shadows'. It focuses on the relationship between Lady Bug and Cat Noir outside of their superhero personas. 'The Miraculous Swap' is also interesting as it has them switch their Miraculouses. And 'The Final Battle' fanfic creates a really intense and engaging end - of - the - world - type scenario for them to face.
Marinette and Adrien, as Ladybug and Cat Noir, finally decided to tie the knot. The city of Paris was filled with excitement. The wedding took place in a grand cathedral. Ladybug walked down the aisle in a beautiful white dress with red accents, while Cat Noir waited at the altar in his dashing black suit. Their kwamis were there too, Tikki and Plagg, looking on with pride. After the ceremony, they transformed briefly to soar over Paris as a newlywed superhero couple, sharing a kiss in the sky.
To write a good Miraculous Ladybug Cat Noir fanfiction, you should start with a strong concept. It could be a 'what - if' scenario, like what if Ladybug and Cat Noir's identities were revealed early. Then, build your story around that. Also, pay attention to the relationships between the characters. The friendship and budding romance between Ladybug and Cat Noir are important elements. Don't forget to add some twists and turns to keep the readers interested. Maybe a character they thought was a friend turns out to be working for the villain.
One possible fanfiction could involve Chat Noir being akumatized after a major argument with Ladybug. Maybe he feels constantly overshadowed or unappreciated. The akuma could enhance his negative feelings, making him more aggressive and less in control. His powers might become distorted, and he could start causing chaos in Paris. Ladybug would then have to find a way to reach out to the real Chat Noir inside the akumatized form and purify the akuma.
Definitely Tikki and Plagg. These Kwamis are essential to the Miraculous universe. Their interactions with Cat Noir and Ladybug, as well as their own little quirks and personalities, can make for really fun fanfiction. Additionally, Sabrina, Chloe's sidekick, can be an interesting character to include. She could have her own story of breaking free from Chloe's control or getting involved in the hero - villain drama in some unexpected way.