Sasuke might also be angry. Angry at the situation, angry at whoever or whatever caused Naruto's amnesia. His anger could fuel his determination to find a cure. He would push himself and Naruto harder in training, hoping that it would jog Naruto's memory, all while trying to hide his true feelings of worry and fear for Naruto's well - being.
One possible plot development could be that Sasuke tries to help Naruto regain his memories. He might take Naruto to all the places that hold significance in their relationship, like the Valley of the End. Another could be that Naruto's amnesia causes him to forget his ninja skills, so he has to relearn everything from basic training, which would be an interesting journey to follow.
Naruto would probably be really angry at first. He's a free - spirited person who doesn't like being forced into things. So he'd likely try to fight back right away, yelling at Sasuke about what he's doing.
Naruto would probably be angry at first. He's always been a free - spirited person, and being kidnapped by Sasuke, his friend - turned - rival, would surely make him mad. He'd likely try to fight back immediately, using his ninja skills and his never - give - up attitude.
He could feel a sense of guilt. Sasuke might think that his actions or their relationship issues pushed Naruto to leave. He may then set out to find Naruto, not only to bring him back but also to resolve their long - standing issues. For example, if there were unspoken words or unresolved fights between them, Sasuke would see this as an opportunity to set things right.
The villagers' attitude towards Naruto could also shift. Some who were always in awe of him might now pity him. But others, like the kids he used to play with, would try to make him remember the good old days. His relationship with the tailed beasts would be really interesting. If he forgets about them, they might try to communicate with him in his mind, which could be a very strange and new experience for Naruto, and it would also be a chance to explore the bond between them in a different way.
Sasuke could be intrigued. If he comes across a well - written fanfic that really captures the essence of his relationship with Naruto or offers a new perspective on his goals and journey, he might get drawn into it. He might start to think about how these different ideas could fit into his own understanding of his life and the world around him. For instance, if a fanfic shows him a different path he could have taken, it might make him reflect on his choices.
Naruto would be devastated. Sasuke is his closest friend and rival. He would likely go into a state of deep mourning at first. He might isolate himself for a while, just trying to come to terms with the loss.
Naruto's reaction would be complex. He would be devastated because his bond with Sasuke is so deep. However, he also trusts Sasuke to an extent. So, he would be torn between his immediate emotional response of anger and his long - standing faith in Sasuke. He might start to look for clues and evidence, and in the process, he could end up uncovering Kabuto's devious plan while also reaffirming his friendship with Sasuke. He would probably be more determined than ever to set things right and prove Sasuke's innocence if he is indeed innocent.
Tadashi himself, without his memories, would be confused. He'd see all these people who seem to know him well but he doesn't recognize them. He might feel a bit scared and out of place. As he starts to interact with the others more, he'd slowly form new relationships with them while they're trying to bring back the old ones. There could be some really interesting character dynamics as everyone adjusts to this new situation.
Yang would be very emotional. She'd be heartbroken that Ruby doesn't remember their shared experiences. She might try to recreate memories, like taking Ruby to their favorite childhood places. Weiss would take on a more practical approach. She'd research any possible cures for amnesia in the RWBY world, whether it's through dust or some other means. Blake would be the quiet support. She'd stay by Ruby's side, listening to her when she's confused and gently guiding her through the things she doesn't understand.