The crossover of two different characters' worlds. Naruto is from his own story with his own set of values and abilities, and Rin is from another part of the Naruto universe. When combined in a fanfic, it can lead to unexpected storylines.
One possible plot could be that Rin and Kakashi are married and they play a role in Naruto's growth. Maybe they pass on some of their skills and wisdom to Naruto. For example, Kakashi could train Naruto in new jutsus, and Rin could help with medical ninjutsu training.
Well, finding a good 'rin kakashi married naruto fanfic' can be a bit tricky. Naruto fanfics usually focus on more common pairings in the Naruto universe. However, you could look for fanfic communities or groups on social media platforms dedicated to Naruto fanfiction. There, you can ask fellow fans if they know of any such fanfics. They might be able to point you in the right direction.
There are quite a few. However, the quality can vary. Some 'naruto x rin fanfic' might be written by novice writers and lack in depth, but there are also some really well - crafted ones. Check out the reviews and ratings on the fanfic sites to find the better ones. Usually, those with high ratings tend to have engaging storylines and good character development.
One plot line could be that Rin somehow gets resurrected and Naruto has to protect her from those who might want to use her for their own gain. Since Rin was a valuable medical ninja, there could be groups that want to force her to heal their injured or create powerful medical jutsus for them.
It could be about their adventures together. Maybe Naruto meets Rin through some time - travel or alternate reality situation. They could team up to fight a common enemy, like a rogue ninja or a new threat to the Hidden Leaf Village.
Kakashi is known for his laid - back yet highly skilled nature. His influence on Naruto could be in terms of teaching him to be more strategic in battles. Rin, being kind - hearted and having a strong sense of care, would give Naruto the emotional support he lacks. So Naruto might become more balanced in his approach to life and ninja - hood.
His friends would be very worried. Shiemi, for example, would probably bring some herbs that she thinks might help with the fever. She would be gentle and try to make Rin comfortable. Izumo, on the other hand, would be a bit more brusque but still concerned. She might scold Rin for not taking better care of himself while also trying to find a solution to his fever.
Yes, there might be. The Naruto and Blue Exorcist fandoms are both quite large, and it's not uncommon for fans to create crossover fanfictions. You can try searching on popular fanfiction websites like Fanfiction.net or Archive of Our Own.