Well, without reading the actual 'ladybug short story', it could be about many things. It might be about a ladybug's adventure in a garden, perhaps its journey to find food or a safe place to rest. Maybe it's a story of a ladybug making friends with other insects.
Most likely, the ladybug itself is one of the main characters. There could also be other insects like ants or butterflies that interact with the ladybug in the story.
The main characters are Ladybug and Chat Noir. Ladybug is Marinette Dupain - Cheng in her civilian form. She is brave, intelligent and creative, always coming up with plans to defeat the villains. Chat Noir is Adrien Agreste as a civilian. He is charming and flirty, and his power complements Ladybug's well in their battles against evil.
One interesting plot could be when Ladybug has to face a new akumatized villain with a very unique power. For example, a villain who can turn people's emotions into physical objects. Ladybug and Chat Noir have to figure out how to defeat this villain while also dealing with the chaos it creates in Paris.
They often focus on the relationships between the characters. For example, the budding romance between Marinette and Adrien. These stories show their cute interactions like blushing, stuttering, and those little glances they give each other. Also, the use of the Miraculous powers in a more light - hearted way, like when Tikki and Plagg play small pranks on each other while the heroes are trying to have a normal day.
In an akumatized Ladybug fanfiction, the akuma might enhance her powers in unexpected ways. For example, her Lucky Charm could become a more powerful and unpredictable object. Her akumatized form might also have a darker and more menacing look, perhaps with a more aggressive fighting style. Writers could explore how the heroes and villains interact with this changed Ladybug.
There's a fanfic where Plagg and Tikki decide to play matchmaker for their holders. They create little 'coincidences' like making Marinette and Adrien sit next to each other in the library. At first, Marinette and Adrien are both a bit flustered, but then they start to enjoy each other's company and have a really cute conversation about their favorite books. This leads to a stronger connection between them even without their superhero identities.
There's a short story in which Tikki and Plagg switch holders for a day. Marinette suddenly has all of Chat Noir's confidence and playfulness, while Adrien is a bit more timid like Marinette usually is. They have to navigate their day like this, and there are so many cute moments as they interact with their friends and each other. It's a unique take on their characters and creates some really interesting and adorable situations.
In this 'Miraculous Ladybug Criminal Ladybug Fanfiction', there could be a lot of potential storylines. One possibility is that an external force is influencing Ladybug to commit crimes. It could be a new villain who has found a way to manipulate the Miraculous. This would create a great conflict as Ladybug has always been the symbol of good. Her friends and allies would be in shock and would have to find a way to stop her without hurting her. The story could also explore her internal struggle, as she might be aware of what she's doing but unable to stop herself.
A new villain could have a weapon that specifically targets Ladybug's powers. When she tries to use her yo - yo or her powers of creation, it backfires and causes her harm. This would force her to rely on her wits and Chat Noir more than ever. They would need to find a way to neutralize the weapon and heal Ladybug.