I'm not entirely sure as I haven't read this specific novel. But generally, it might be about the emergence and growing power of dark - type Pokémon. It could involve their interactions with trainers, battles against other Pokémon types, and how they are changing the Pokémon world.
There could be a trainer who has a special bond with dark Pokémon as one of the main characters. Maybe also a Pokémon researcher who is trying to understand the sudden rise of dark Pokémon. Another possibility is a powerful dark Pokémon that plays a central role in the story, with its own personality and goals.
Some popular "leon x raihan fanfic" include 'The Path to Friendship'. In this fic, it starts with their normal rivalry but then shows how they start to understand each other better. 'Raihan's Perspective' is also interesting. It's written from Raihan's point of view, giving insights into his feelings towards Leon. And 'Leon's Hidden Thoughts' reveals what Leon really thinks about Raihan during their encounters.
Friendship is also a big theme. Despite their rivalry, stories often show how they respect and care for each other. For example, they might help each other in a difficult situation, like when facing a powerful wild Pokemon or dealing with a crisis in the Pokemon league. And sometimes, there are stories that develop their relationship into a romantic one, which is a less common but still interesting theme in this kind of fanfiction.
You can try searching on popular fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. These platforms usually have a large collection of Pokemon fanfictions, and you might be able to find some great stories about Leon and Raihan there.
Another theme is mutual respect. Despite their differences, they come to respect each other's skills and abilities. In many fanfictions, this respect is shown through their interactions during Pokemon training sessions or competitions.
First, understand the characters. Leon is known for his strength and charisma, while Raihan is a strategic and competitive person. Then, think of a unique plot. It could be about a secret adventure they go on together. Next, focus on their dialogue. Make it true to their personalities. For example, Leon might be more straightforward, and Raihan more sly in his words.
You can try fanfiction websites like Archive of Our Own (AO3). There are a large number of Pokemon fanfictions there, and you're likely to find some great ones about Raihan and Piers. Just use the search function and type in their names.
One challenge could be dealing with over - emotional Pokemon. If he senses a Pokemon that is extremely angry or sad all the time, it might be draining for him. For instance, a Pokemon that has been abandoned and is full of sorrow might be hard for Naruto to be around without getting affected himself.
Well, it could change the way battles play out. For example, if Naruto can sense a Pokemon's fear before a fight, he might try to calm it down instead of just attacking. This could lead to some unique alliances or ways of resolving conflicts in the fanfiction.