He could form a strong bond with Killer Bee. They are both Jinchuriki, so they might share their experiences and train together. This could lead to a deeper understanding between Konoha and Kumo as a result of their friendship.
Well, Naruto is obviously one of the main characters. He's the central figure who brings his own skills and experiences from Konoha to Kumo. Then there would likely be some original Kumo characters created for the fanfiction. For example, a strong Kumo ninja who becomes Naruto's rival or friend. There might also be a Kumo leader or elder who plays an important role in how Naruto is received and integrated into the village.
In this fanfiction, Naruto is the central figure. Alongside him, we might expect to see characters like the Raikage from Kumo. Their interactions and differences in ideologies could be a major part of the story. There could also be some minor characters from both Konoha and Kumo who help to build the background and context of Naruto's decision to abandon Kumo, like the shopkeepers or other common shinobi who witness the events leading up to this big decision.
Well, one potential partner could be Omoi. I know he's male, but in some fanfictions, gender - bending or same - sex relationships are explored. Omoi's unique personality, with his over - thinking and yet loyal nature, could create an interesting relationship with Naruto. However, if we stick to the more traditional female partners, Yugito Nii could also be a great choice. She was a jinchuriki, just like Naruto, and they could share a special bond based on that shared experience.
Naruto would probably use his friendly and outgoing nature to adapt. He'd start by getting to know the people around him, like his new family and the local ninjas. He might also be interested in Kumo's unique jutsu and training methods, which would help him fit in. And of course, he'd keep his goal of promoting peace between Konoha and Kumo in mind, which would give him the motivation to overcome any difficulties in adapting.
The Kumo ninja would likely be angry at first. They'd feel that Naruto, as a symbol of hope in the shinobi world, should have noticed their problems. But some of them might also be hopeful that Naruto's arrival would finally change things for the better. As for Naruto himself, he'd probably be shocked to realize how much he'd overlooked Kumo and would feel a sense of guilt.
Naruto is a given in this fanfiction. In Kumogakure, Mabui could be part of the harem. She is intelligent and in charge of a lot of important operations in the village. Her relationship with Naruto could start from her helping him with some village - related tasks. Another potential character is Omoi. Although he is male, his interactions with Naruto could lead to the female characters around him taking more of an interest in Naruto, thus contributing to the harem idea.
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.
Maybe he's running away from some kind of danger or threat in his home village. There could be a group or an individual after him, and he believes that Kumo would be a safer place. It could also be related to some political unrest in Konoha that makes him feel like he has to leave, and Kumo seems like a viable option.