Who could be the main antagonists in a 'naruto king of westeros fanfiction'?

It could be a group of rogue ninjas who want to capture the dragons for their power. They might be led by a powerful and greedy ninja who sees the dragons as a means to gain ultimate power over the ninja world.

Another possible antagonist could be a character from Naruto's own world who has also been brought to this new world and has been corrupted by the power of the Witch King. This character might envy Naruto's new - found power as the Witch King and wants to take it for himself. So, he teams up with the dark forces in this new world to oppose Naruto, creating a lot of challenges for Naruto to overcome.

One possible antagonist could be an Akatsuki member who has somehow gained knowledge of Naruto's Arthurian reincarnation and wants to use it for their own evil purposes. Maybe they want to steal the power that comes with it.

Well, one possibility is that Naruto uses his ninja skills in the world of Westeros. He might use his shadow clone jutsu to confuse his enemies in battles against the knights or rival houses. Maybe he forms an alliance with a particular house using his charisma, like he did with his friends in the Naruto world.

Maybe the Hidden Leaf Village elders could turn into antagonists. They might fear Naruto's new power as the demon king and try to undermine him. They could form alliances with other villages to try and take down Naruto. Also, there could be some new, unknown powerful forces that emerge because of Naruto's transformation. These could be ancient evils that were once sealed away but are now awakened by Naruto's new demonic presence.

It could be a group of rogue ninjas who want to use the power of the Monster King for their own evil purposes. They might try to capture the Monster King and force it to do their bidding, which would put them in direct conflict with Naruto.

There could be a new dark sorcerer who emerges. This person might be jealous of Merlin's position as king and a powerful sorcerer. They would try to bring chaos to the kingdom and usurp Merlin. Also, the neighboring kingdoms that are envious of Merlin's prosperous kingdom could send spies or even start wars, acting as antagonists.

The Sound Ninjas could be great antagonists. They could use their own unique parkour - like skills to try and stop Naruto. They might be chasing him through the forest, and Naruto has to use his parkour skills to outmaneuver them.

Maybe some corrupt officials within the prison system itself. They oppose Naruto's more humane and reform - focused approach to prison management. They might try to undermine him at every turn, for example, by cutting off resources or spreading false rumors about him among the prisoners.

Maybe a group of dark - type Pokémon that have banded together and are trying to overthrow Arceus. They view Naruto as an easy target at first, but quickly realize he is a formidable opponent with his ninja skills and new Pokémon - related powers. They would constantly try to undermine Naruto and his efforts to protect the Pokémon world.