Long - term, Arthur may start to question his own beliefs. Merlin leaving could make him re - evaluate his stance on magic. If he realizes how much he has lost without Merlin, he might start to think that perhaps the way magic has been treated in Camelot is wrong. This could lead to a change in Camelot's laws regarding magic in the future, but it would be a slow and difficult process as he has to overcome his own prejudices and the long - held views of the court.
Perhaps she has a new mission or calling that takes her away from Camelot. It could be something related to the greater magical world. For example, there could be an ancient magic that is in danger of being lost or misused, and she is the only one who can save it. Since Camelot has been rather unkind to magic in general, she might feel that she has to leave to fulfill this important task.
It can create a big shift in the power dynamics. If Naruto was a key member in the Anbu, his departure might leave a gap that other characters have to fill. This could lead to new characters emerging or existing characters having to step up and take on more responsibilities.
Sakura would be heartbroken. She has deep feelings for Naruto, and his sudden departure would make her feel abandoned. She might initially be angry at him for leaving without saying goodbye but would soon worry about his safety.
It could create a sense of unease and fear. Naruto is a very powerful ninja, and if he turns dark and leaves, the villagers would be worried about him coming back as an enemy. It might also lead to a decrease in morale among the ninjas who once considered Naruto a friend or ally.
Sasuke might become more withdrawn. He was always in a sort of rivalry with Naruto, and without Naruto there, he could lose some of his motivation to get stronger. Sakura would be devastated. She cared about Naruto, and his leaving would make her question what went wrong. Kakashi would also feel a sense of failure as a teacher.
It could lead to political unrest in Konoha. There might be those who blame the village leadership for Naruto's departure. This could lead to power struggles as different factions try to take control and change the way the village is run. Some might demand more transparency and better treatment of their shinobi to prevent such a thing from happening again.
Some of his friends could be inspired. They might see Naruto's departure as a noble act, especially if he's leaving to protect his family. Naruto has always been a source of inspiration, and this could lead them to re - evaluate their own relationships and responsibilities. For instance, Sakura might be motivated to be stronger to support Naruto's family in his absence.
For Naruto, it would be a big shock. He's always seen Sakura as an important part of the team. He would probably feel guilty, thinking he might have done something wrong. Sasuke might be more reserved in his reaction, but deep down, he would also feel the loss. Kakashi would be worried about her safety. The other ninja in Konoha might start to question the unity of the village if someone like Sakura, who was so well - known, left. And the young ninja who looked up to Sakura would be disappointed and might even lose some motivation in their training.
A plot might involve Merlin leaving Camelot to seek greater magic knowledge. He has learned a lot in Camelot, but there are still secrets about his powers and the old magic that he can't uncover there. So, he sets off into the unknown, leaving behind his friends and the life he has known. This could lead to him encountering new magical creatures and learning ancient spells that he can later use to help Camelot in a time of great need.
In such a fanfiction scenario, the roughness can have various impacts. It could create a sense of tension and conflict in their relationship. Merlin might start to question Arthur's true feelings towards him. But on the other hand, this rough treatment could also be a sign of Arthur's internal struggles or misunderstandings. Maybe he's dealing with his own insecurities or pressures and taking it out on Merlin in the wrong way. As the story progresses, this could be a catalyst for character growth for both of them, with Merlin learning to stand up for himself and Arthur learning to be more empathetic.