Well, obviously Bowser and Dark Bowser are the main characters. Bowser is the well - known villain from the Mario series, and Dark Bowser is his darker, more menacing counterpart.
Another possible plotline is that Dark Bowser is actually a part of Bowser that he has been suppressing. The fanfic could explore Bowser's internal struggle as he tries to come to terms with this darker side of himself. It could also show how this affects his relationships with other characters, like Princess Peach and his minions.
I'm not sure specifically what that particular 'bowser inside peach fanfic' is about as there could be many interpretations. It might be a fan - created story where Bowser has some sort of relationship or interaction within the context of Princess Peach's world in the Super Mario universe.
The main characters are, of course, Bowser and Peach. Bowser is often portrayed as the big, tough villain who has a thing for Peach. Peach, on the other hand, is the princess who is usually in need of rescue. But in fanfics, their roles can be expanded and changed in many ways.
The so - called 'bowser and peach love story' is rather complex. Bowser, the main villain in the Mario series, has an obsession with Princess Peach. However, it's not really a traditional love. Bowser often kidnaps Peach as part of his evil plans to take over the Mushroom Kingdom. Peach, on the other hand, is in love with Mario. So, this 'love story' is more of Bowser's one - sided, improper pursuit which forms a key part of the Mario - related plot.
A 'bowser x peach fanfic' is likely a fan - created fictional story that involves the characters Bowser and Peach. It could be about their relationship in an alternate universe, perhaps exploring how they interact, whether it's a story of unexpected friendship, a complex rivalry with new twists, or some other creative take on their connection within the fan's imagination.
Another theme is 'redemption'. Bowser may be on a path to change his ways, and Peach plays a role in that. It could be that Peach's kindness makes Bowser question his actions, and he tries to become a better 'person' in a sense. This theme adds depth to their relationship.
I'm not entirely sure specifically what that particular fanfic is about without reading it. But generally, if it's a 'bowser kills peach' fanfic, it might be a darker take on the Super Mario universe where Bowser manages to defeat Princess Peach, perhaps exploring different consequences and reactions within that fictional world.
One common theme is the idea of enemies - to - lovers. Since Peach and Bowser are typically antagonists in the original games, many fanfictions explore the possibility of them falling in love.
No, it's not appropriate. Fanfiction should generally adhere to ethical and moral standards. Writing adult - themed fanfiction about well - known characters often goes against the family - friendly nature of the original source material and can also be disrespectful to the creators and the wider fan community.