Kirito from SAO could also be a main character in the crossover. He might discover a strange Pokemon in the SAO world and start to learn about its powers. He could then team up with other Pokemon trainers within the SAO world to fight against a new threat that combines the dangers of both worlds.
Obviously Percy would be one of the main characters. He could lead the way in exploring the crossover world. His Pokemon partner might be a strong and loyal one. Annabeth could also be a main character, using her intelligence to strategize in Pokemon battles. Grover might tag along, befriending some unique Pokemon. And maybe some of the Pokemon themselves could be considered main characters, like Pikachu if it made an appearance in this crossover world.
A young and curious Pokemon trainer would be a great main character. This trainer could be someone who is always on the lookout for rare and unique Pokemon. When they encounter the worm - like Pokemon, they are immediately intrigued and decide to make it a part of their team.
It could be the main Pokemon trainer from the Pokemon series. And of course, Darkrai would likely be a major character as it's in the title related to its rise. There might also be other popular Pokemon like Pikachu or Charizard depending on the writer's preference.
Maybe an older priest who has a long - time companion Pokemon, like a Growlithe. He uses his experience with both the church and Pokemon to guide the younger members of the congregation, especially those who are also trainers. He helps them see how their Pokemon can be a part of their faith and not just for battling or collecting.
The main character could be a young trainer named Ash. He's always eager to learn more about Pokemon and is very friendly. Another character could be Misty, a girl who is really good with water - type Pokemon and is a bit of a tomboy. There could also be Brock, who is knowledgeable about Pokemon care and often gives advice to other students.
Naruto is a must - have as the main character. For the Pokemon world, maybe Eevee could be a key character. As for the harem, there could be new female characters created specifically for this fanfiction. They could be a mix of half - Pokemon, half - human hybrids. Also, Hinata could be part of the harem. In the Pokemon world, her shy but strong - willed nature would be an interesting addition, and she would support Naruto in his adventures.
Obviously Naruto would be one of the main characters. And from 'The 100', Clarke would likely be a main character as well since she is a central figure in her own show.
The game's own system could be the antagonist in a sense. For instance, if there are glitches or bugs that are deliberately set up to harm the players. The gamer has to fight against these system - related issues as well as the regular in - game enemies. It could be that the game's developers had some ulterior motives and the system is programmed to prevent players from escaping or reaching certain levels. The gamer would then have to figure out how to outwit the system, which is constantly evolving and adapting to their actions.
In a 'pokemon sao crossover fanfic', a great plot could be that the main character from the Pokemon world gets trapped in the SAO world. They then discover that they can use their Pokemon to fight the bosses in SAO. The Pokemon would need to adapt to the digital environment, like learning how to dodge virtual attacks. The trainers would also have to figure out how to heal their Pokemon in this new world, which could lead to some interesting adventures as they search for digital Pokemon centers or find new ways to restore their Pokemon's health.
A young trainer from an underdog region who rises to be a leader in the war effort. He or she could have a unique bond with a Pokemon that gives them an edge in battles.