Well, in Kumo, Naruto might face challenges related to power struggles. There could be certain groups or individuals in Kumo who see Naruto as a threat to their own influence. He's a powerful ninja from Konoha, and some in Kumo might not want him to gain too much power or popularity there. Another biggie is making new friends. It's not easy to break into an established social circle in a new village, and Naruto might find it hard to find people he can really trust and rely on.
Naruto could face the challenge of being homesick in Kumo. He has grown up in Konoha and has strong emotional bonds with the people and places there. In Kumo, he is in a completely new environment. Additionally, he may have to deal with different political situations. Kumo might have different relationships with other villages and Naruto may get caught in the middle of some complex diplomatic issues. For example, if there is some sort of tension between Kumo and another village that Naruto has ties to, he will have to navigate that carefully.
He might meet a young and idealistic ninja in Kumo. This ninja could show Naruto a different way of looking at the ninja world. Maybe this Kumo ninja has a more peaceful approach to resolving conflicts, which makes Naruto re - evaluate his own views on fighting and rivalry between villages.
The journey itself could be full of danger. There could be bandits or rogue ninja along the way who target Naruto because of his fame. Also, the terrain between Konoha and Kumo might be difficult to traverse, with mountains, rivers, and forests full of wild animals.
Adapting to a new ninja system could be a big challenge. Kumo may have different training methods, rules, and traditions compared to his home village. Naruto would need to learn and adjust quickly if he wants to survive there.
One possible reason could be a mission. Maybe the Hidden Cloud Village (Kumo) requests Naruto's help specifically for a very important and dangerous mission that can only be accomplished by him. So, he has to leave Konoha for Kumo.
One challenge could be the powerful ninja from Kumo. They are known for their strength and combat skills. Naruto would have to face them in order to rescue Kushina.
In some fanfictions, Naruto might face new challenges in Kumo. He could encounter different ninja with unique jutsus. Maybe he has to prove himself all over again in this new village environment.
One possible plot could be that Naruto goes to Kumo but is not well - received there. Maybe the people of Kumo are still suspicious of him because of his status as a Jinchuuriki. They could isolate him, and Naruto has to struggle to prove himself worthy of their trust. He might also face discrimination from some of the Kumo ninja.
His relationships would become very complex. His friends in Konoha would be in shock. Naruto leaving Konoha for Kumo is like a slap in the face to them. They would wonder what drove him to such a decision. For example, Naruto had such a strong bond with Iruka - his first mentor. Iruka would be deeply saddened and would question if he had failed Naruto in some way. And Naruto's relationship with Kakashi would also take a hit. Kakashi would be worried about what this means for the future and how it could potentially lead to conflict between Konoha and Kumo.
First of all, Naruto arriving in Kumo could disrupt the power balance there. Some might see him as a threat, while others as an opportunity. He could get involved in Kumo's internal politics. Since he's always been about making friends, he might try to bridge the gap between Kumo and Konoha, even though he was banished from Konoha. He could also discover secrets about Kumo that are related to his own past or abilities. For example, there could be some ancient Kumo jutsu that only he can master due to his Uzumaki heritage.
In the 'naruto goes to kumo fanfic', Naruto could be on a mission in Kumo. He might make new friends or enemies. He could also learn new jutsu from the ninjas in Kumo. It could be a great opportunity for him to grow as a ninja and expand his understanding of the ninja world.