Kwamis like Tikki and Plagg are important characters as well. They are the ones who give the heroes their powers. In fanfics, they can have more in - depth personalities and interactions with their holders. For example, Tikki might give Marinette some really good advice about handling her feelings for Adrien, or Plagg could get into some comical situations while still being Chat Noir's guide and source of power.
Ladybug and Chat Noir are almost always the main characters. Their relationship, both as superhero partners and their potential romantic relationship, is a big focus. Marinette, who is Ladybug in her civilian form, and Adrien, who is Chat Noir, bring their own personalities and storylines to the fanfic.
Typically, you'll see Yuno Gasai as one of the main characters. She's a very prominent character in the original Future Diary series, and in fanfics, her complex personality and relationship with Yukiteru Amano are often explored further. Yukiteru Amano himself is also a mainstay. Their dynamic, which can be quite intense and often has elements of love and danger, is a popular focus in these fanfics.
Ladybug and Chat Noir are often the main characters. They are the superheroes of Paris in the Miraculous Ladybug universe, so it's natural for them to be in spa - related fanfictions. They might be there to unwind or on a mission.
Deidara is also a popular character to feature. His explosive personality can be played up for comedic effect. He could be constantly getting into trouble because of his short temper, but in a really funny way, like accidentally blowing up his own art supplies instead of his intended targets.
Some fanfics could focus on the relationships between the characters outside of their superhero personas. Like Marinette and Adrien might have a really sweet moment where they share their dreams and fears. And perhaps there are some fanfics where the other characters like Alya and Nino play a more significant role in helping Ladybug and Chat Noir with their battles.
Princess Celestia is also commonly included. Since it's a Canterlot wedding, as the ruler of Canterlot, she would play an important role in the organization and significance of the event. She could be shown making important decisions regarding the wedding.
Teachers can also be main characters in some school lemon fanfic. A young and enthusiastic teacher who wants to make a difference in the students' lives could be a central figure. Maybe he or she has to deal with difficult students or a strict school administration. Another type of main character could be the school principal, who has to manage all the chaos and drama that goes on in the school on a daily basis.
The main character is often the teacher from the original Gokusen series. They play a crucial role in guiding the students and dealing with the various challenges in the fanfic world.
Marinette and Adrien are still very popular in Miraculous Lemon Fanfic. Their relationship is a central focus in the original show, and in the fanfics, it often gets explored in more depth, whether it's in a romantic or a platonic way.
Obviously, Kleo is the main character. But often, other Fallout 4 characters also make appearances. For instance, the Sole Survivor might be in the story, interacting with Kleo in various ways, like being her ally or sometimes her rival. Dogmeat could also be there, adding a bit of that cute and loyal element to the fic.
Adrien is often featured too. He might visit the boutique, or be involved in events related to Marinette's designs. And of course, as Chat Noir, he could be protecting the boutique from villains in the Miraculous Ladybug Boutique Fanfiction.