Another possibility is a brand - new character introduced as a relative of one of the main characters in the Harry Potter series. Like a distant cousin of Harry Potter himself who has the fae blood. This character could bring a whole new dynamic to the wizarding world as they struggle to fit in with their wizard family while also exploring their fae side.
It could also be a minor character from the original Harry Potter series. For example, Luna Lovegood. Her rather eccentric nature could be explained by a fae heritage. She could be the one who discovers her connection to the fae world and uses it to help in some great adventure.
Well, it could be about the descendant having unique magical abilities inherited from the fae. Maybe they can communicate with magical creatures in a special way that even Harry Potter couldn't. They might also have a connection to the fae realm and face challenges in protecting both the wizarding world and the fae world from a common threat.
Hermione would be a great choice. Her intelligence and thirst for knowledge would make her very interested in the Fae Prince's different magical culture. She could learn from him and also help him understand the ways of Hogwarts better.
Perhaps a group of pure - blood supremacists could be the main antagonists. They see the Peverell descendant as a threat to their ideas of a pure - blood - only wizarding world. They might try to undermine the descendant at every turn, spreading false rumors and trying to isolate them from the rest of the wizarding community.
It could be Naruto himself. Imagine if Naruto was secretly a descendant of Sparda. He would already have his own powerful chakra and then add the powers from Sparda's bloodline. It would make him an even more formidable force in the ninja world.
Perhaps it could be an existing Naruto character like Naruto himself, but in an alternate universe where he has this Nero connection. This would change his character arc quite a bit as he has to deal with this new aspect of his identity. He might have to learn new skills or face different types of enemies due to his Nero descendant status.
It could be Naruto himself. Imagine if through some magical or mysterious event, Naruto was revealed to be a descendant of Hiei. His already strong will and determination could be enhanced by Hiei's traits, making him an even more formidable ninja.
It could be a new character created specifically for the fanfiction. Maybe a young ninja who discovers their relation to Hagoromo later in life.
It could be a new character who is introduced as the descendant. Maybe a young ninja who has always felt a bit different from the others in their village. They start to have strange dreams related to Alice and then begin to uncover their unique heritage.
It might be Naruto's long - lost relative. This would add an interesting twist as Naruto is already a very powerful and well - known character. His relative having Frieza - like powers would create a lot of drama and new storylines. For example, Naruto might have to help this relative control their powers or deal with the consequences of having such a unique heritage.
The main character could be an existing Naruto character who somehow discovers they have Sesshomaru's bloodline. For instance, Naruto himself could be the one. Imagine if during one of his adventures, he unlocks a hidden power within him that is related to Sesshomaru. This would completely change his dynamic and how he approaches battles and relationships in the ninja world. He would have to learn to control new powers like Sesshomaru's poison claws or something similar.