Iruka and Naruto are the central characters. However, depending on the plot of the fanfiction, characters like the Third Hokage could be involved. He might be the one who gives Iruka certain instructions or permissions regarding Naruto. And then there are Naruto's friends from the academy, such as Kiba and Shino. They could be part of the story, for instance, joining Naruto in some training sessions arranged by Iruka.
Physically, Iruka takes care of Naruto's symptoms. If Naruto has a cough, Iruka might make him herbal tea to soothe his throat. If Naruto has a fever, he uses cold compresses to bring the temperature down. He monitors Naruto's condition closely and adjusts his care accordingly, making sure Naruto is on the road to recovery as quickly as possible.
In some fanfictions, Iruka takes care of Naruto during his post - mission recoveries. He might cook special meals for Naruto, like his favorite ramen but with added nutritious ingredients to help him heal faster. Iruka also tells Naruto stories about the great ninjas of the past during these times, inspiring Naruto even more.
Another scene could be Iruka staying up all night by Naruto's bedside. He gently wipes Naruto's forehead when he has a fever, and tells him stories about his own days at the ninja academy. This makes Naruto feel less alone and more cared for. Iruka might also share some of his own insecurities as a kid, which Naruto finds really comforting.
Well, clearly Iruka and Naruto are the main characters. Iruka is the teacher, and Naruto is the student. Their relationship forms the core of these fanfictions.
The main characters are usually Naruto and Iruka. Naruto is the young ninja with a big heart and a lot of potential. Iruka is the kind - hearted teacher who has a special bond with Naruto. Sometimes, other characters from the Naruto universe might also be involved, like Kakashi who could be a friend to their 'family' in the fanfiction.
In this kind of fanfiction, Kakashi would probably make sure Naruto is comfortable first. He might tuck Naruto into bed, just like how a caring mentor would do. Then, he'd likely prepare some warm soup for Naruto to help him get better.
It could be Voldemort who somehow crosses over into the Naruto world. He would be a formidable antagonist as he has powerful dark magic. He might team up with some of the villains in the Naruto world like Orochimaru, and together they could plot to take over both the wizarding world and the ninja world. Naruto and Harry would then have to work together to stop them.
Taking care of Naruto might make Sakura more empathetic. She has to understand Naruto's pain and needs, which could make her a better ninja overall. As for Sasuke, it could break down some of his walls. He has to be vulnerable in front of Naruto and Sakura, showing that he's not just the aloof and brooding ninja. This experience might also make him more open to the idea of relying on others and being part of a team again.
Mainly, it's Bucky Barnes and Tony Stark. Bucky is the caretaker here. He has his own history, including his time as the Winter Soldier. Tony, on the other hand, is the deaged character. He's known for his intelligence and wealth in his normal state, but now as a deaged person, he has new vulnerabilities. While other characters might show up in the fanfiction, these two are the core around which the story is built.
Well, clearly Harry is one of the main characters as he is the one taking care of the baby cousin. The baby cousin is also a main character, even if it's a young and not fully developed character yet.