It could be the protagonist. The one who has always been suspicious of Lila's stories and has been quietly investigating. They might finally gather enough evidence and expose her.
Well, in such a fanfiction, perhaps Lila's lies are finally revealed to all the characters who have been deceived by her. For example, if it's set in a school - like Miraculous Ladybug setting where Lila has been lying about her achievements and connections, she might be exposed during a big event at school, like a speech or an award ceremony.
Maybe she was framed by an Akuma - influenced villain. In the 'Miraculous Ladybug' world, this is quite likely. Her arrest could be part of a larger scheme to distract Ladybug and Chat Noir. So, Ladybug might have to balance her superhero duties with clearing Marinette's name, which would be a really interesting plot twist.
I'm not entirely sure specifically what 'lila exposed fanfic' is about without more context. It could be a fan - created fictional story where a character named Lila has something exposed, perhaps a secret or a misdeed in the context of the original work that the fanfic is based on.
One great completed Miraculous Ladybug fanfiction is 'Ladybug's True Identity Revealed'. It delved deep into how the characters would react when Marinette's secret was out. It was really exciting as it showed the different relationships evolving in new ways.
Fanfiction about 'Miraculous Ladybug' can be really interesting. 'Troublemaker' might refer to a particular plot point or character within the fan-created story. It could involve a character causing chaos in the world of Ladybug and Cat Noir, perhaps a new villain or a misunderstanding among the heroes. The beauty of fanfiction is that it allows fans to explore different scenarios that the original show might not have delved into.