There could also be a new, made - up character as the antagonist. Maybe a power - hungry lord or a mysterious assassin who has been hired to ensure Ned's demise. This new character could bring in fresh elements to the story and create a unique conflict for Arya to overcome.
The Lannisters as a whole could be the antagonists. They were often at odds with the Starks and had their own political ambitions. Cersei, in particular, might be pulling the strings behind Ned's capture, seeing him as a threat to her power and her children's claim to the throne.
Another idea is that Arya uses her skills in a completely new and unexpected way. Instead of relying on her typical stealth and combat skills, she might use her wits to manipulate the situation. For instance, she could spread false rumors among the captors that would cause chaos and confusion, allowing her to slip in and save Ned.
Well, perhaps Harry Potter uses his magic skills like the Patronus charm to fend off the enemies who are about to harm Ned Stark. He could apparate Ned to a safe place just in time.
Jon Snow could be paired with Arya. They could go on a quest to find something important, like a long - lost heirloom of House Stark. Along the way, they share stories of their past adventures and strengthen their bond as siblings, while also facing various challenges from the elements and enemies.
Perhaps the main antagonist could be a new character. This new character could be an ancient evil that has been awakened by the presence of the Saiyans on Earth. They see Bardock and Raditz as a threat to their plans of taking over the universe and thus try to eliminate them.
Another idea for a fanfic is that Arya discovers she's not really the last Stark. There could be a long - lost relative hidden away. She then embarks on a journey to find this person. Along the way, she has to overcome many obstacles and face new enemies, all while trying to keep the hope of the Stark family alive.
She could end up ruling over a part of Westeros. Her skills and experiences would make her a great leader.
Arya could encounter old friends like Gendry. Their relationship might have evolved during her time away, and there could be new feelings or just a strengthened bond of friendship. Also, she may come across some of the younger Stark bannermen who have grown up in her absence and now look up to her as a hero.
A young lord from House Tully could be a potential suitor. The Tullys have a long - standing alliance with the Starks, and such a marriage would strengthen that bond. He might be a gentle and scholarly type, very different from Arya's rough - and - tumble nature, which could create an interesting dynamic as they learn to understand each other.
It could be a new, self - made villain. Maybe a rogue ninja who was once rejected by the Hidden Leaf Village. He blames Naruto for his misfortunes and decides to target his sister as revenge. This villain would have his own set of unique and dangerous jutsu, which Naruto would have to figure out how to counter in order to save his sister.
It could be a rival archer who has a vendetta against the main archer and decides to target his family to get back at him.