Some fanfictions might explore the emotional toll on the characters. After Mayura, Ladybug could be dealing with feelings of guilt or self - doubt. She might question if she could have done more to stop Mayura. Chat Noir, on the other hand, could be more protective of Ladybug. And there could be new Miraculous holders emerging as a result of the chaos left by Mayura, which would bring a whole new set of storylines and character interactions.
In some 'Miraculous Ladybug After Mayura Fanfiction', there could be a shift in the power dynamics. Since Mayura was a powerful adversary, her absence might create a power vacuum that other characters try to fill. This could lead to new alliances and rivalries. Also, the relationship between Ladybug and Chat Noir could evolve. They might become closer as they face new challenges together without Mayura's interference.
One interesting plot could be Mayura trying to find a way to reverse the damage to her health caused by using the Peacock Miraculous. She might seek out ancient spells or rare artifacts in the Miraculous universe.
Give her internal conflicts. For example, she might be struggling with the negative effects of using the Peacock Miraculous but still be determined to help Hawk Moth achieve his goals. You can show her having moments of doubt where she questions whether what they're doing is right, especially when she sees the chaos they create in Paris.
One interesting plot development could be the exploration of how the characters deal with the aftermath of the Collector's actions. Maybe Ladybug and Chat Noir have to face new villains who were inspired by the Collector's chaos. Another aspect could be the growth of the side characters. For example, Alya might become more involved in the superhero side of things, helping Ladybug with strategies. Also, the relationship between Ladybug and Chat Noir could evolve in a different way. They might have a deeper understanding of each other's insecurities after the Collector incident.
In some fanfictions, one interesting plot development could be that Ladybug and Chat Noir accidentally reveal their identities during a battle. For example, their Miraculous might get damaged and they transform back in front of each other.
Obviously, Ladybug and Chat Noir are still main characters. They are the ones who have been fighting against the villains all along, and after Mayura, they would continue to be at the forefront. Marinette, who is Ladybug in her civilian form, and Adrien, who is Chat Noir, are also central. Additionally, other characters like Alya, who has been Marinette's friend and sometimes helps Ladybug, could also be important in the fanfiction.
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.
In a Miraculous Ladybug wedding fanfiction, it could start with Ladybug having a dream about marrying Chat Noir. She wakes up flustered but realizes she has some real feelings for him. Chat Noir, on the other hand, has been secretly planning a big proposal. When he finally does it, Ladybug says yes. For the wedding, they decide to have it in a secret garden that only they know about. Marinette's family and Adrien's father (who has had a change of heart) come together to help with the arrangements. The wedding ceremony is filled with magic, as their kwamis play little tricks to make the day even more special. And at the end of the day, they transform into Ladybug and Chat Noir and have a private dance on the rooftops of Paris.
Power and its corrupting influence is often a theme. Some fanfictions show how Mayura's pursuit of power affects her relationships and actions. Also, loyalty is a big one, whether it's her loyalty to Hawk Moth or the potential for new loyalties.
One possible interesting plot could be Ladybug being the more reckless and impulsive one while Cat Noir is the calm and strategic hero. For example, Ladybug might rush into battles without a proper plan, and Cat Noir has to figure out how to cover for her mistakes and keep the situation under control. This role reversal could lead to new dynamics in their relationship and how they interact with the villains.
One idea could be that the Reverser's powers are amplified and he starts reversing not just individual actions but entire relationships in Paris. So, Marinette and Adrien's unspoken bond is reversed, making them avoid each other at all costs. Another could be that the Reverser targets Ladybug's and Chat Noir's memories of their superhero identities, causing chaos as they try to figure out who they are again while still having to fight akumas. A third idea is that the Reverser somehow manages to reverse the concept of good and evil in Paris, making the akumas seem like the heroes and the heroes like the villains, and Ladybug and Chat Noir have to find a way to reverse it back.