A possible plot twist might be that Naruto, being the son of Robert Baratheon, has to choose between the values of the ninja world he grew up in and the cut - throat politics of Westeros. He could also have some unique ability inherited from his Baratheon side that changes the whole dynamic of battles in the Naruto - like battles that might occur in this crossover world.
Perhaps Naruto's presence as the son of Robert Baratheon causes a rift in the existing power structures in Westeros. The lords and ladies might not be able to accept a half - foreigner with strange powers as part of the royal family. This could lead to all - out war, with Naruto having to use his ninja skills and charisma to either gain acceptance or fight for his rightful place.
Perhaps the story could focus on Naruto growing up in the court of King's Landing. He would face the political intrigue there, which is very different from the world he knew in the Naruto series. His ninja training might give him an edge in dealing with the backstabbing and power - hungry nobles, while also trying to understand his new identity as Robert Baratheon's son.
One possible plot twist could be that the new marriage is a political alliance. For example, if he marries a noblewoman from a far - off land, it could bring new resources and allies to his kingdom. This would create a whole new set of power dynamics as different factions within the court would either support or oppose the new alliance.
Naruto would probably be more politically aware. Growing up as the son of Robert Baratheon, he'd be exposed to court intrigue from a young age. So instead of just being a simple - minded, but kind - hearted ninja, he'd have a shrewd side.
One possible plot could be that Harry, as the son of Robert Baratheon, grows up in a world where the wizarding and non - wizarding realms are more intertwined. He might face challenges from both the magical politics and the power struggles of the Seven Kingdoms. Maybe he'd use his magic to help resolve some of the disputes in Westeros, all while dealing with the secrets of his dual heritage.
Well, one plot twist could be that the son has some unique power that neither Naruto nor his friends are aware of at first. Maybe it's a power that was dormant until a certain event triggered it.
A plot could be that Robert Baratheon, in his later years, starts to question the legitimacy of the current power structure. He meets Jon Snow, who has a mysterious allure about him. They start to exchange ideas about honor and leadership. Robert realizes that Jon has a different kind of wisdom, born from his experiences at the Wall. This leads to a journey together where they try to find a new way to rule the Seven Kingdoms that is more just and inclusive.
One possible plot twist could be that Naruto inherits Sakumo's unique sword skills. Since Sakumo was known for his swordsmanship, Naruto might have to balance learning his regular ninja skills with these new, inherited techniques. This could lead to interesting battles where he surprises his opponents with a different fighting style.
His abilities might be a blend of his ninja skills and the more 'mundane' skills expected of a noble in Westeros. For example, he could use his shadow clone jutsu to attend multiple court meetings at once, while also learning how to joust or fight with a sword like a true Baratheon.
A common plot twist is when a Naruto teacher is suddenly made to teach a group of students who are not ninjas at all. For instance, if Kakashi has to teach normal high - school students in a non - ninja world. It completely changes his teaching approach and the dynamic of the story.
One idea could be a fanfiction where Robert Baratheon's son, perhaps Joffrey (even though he was a cruel character), has a change of heart. In this fanfic, he could start to see the error of his ways after meeting a wise old maester who tells him tales of great but just kings. He then tries to make amends for his past actions, which would be a huge departure from his original character arc in the show and books.