Obviously, Naruto is one of the main characters. And Kakashi's dogs are also main characters in a sense, as the story is centered around Naruto's meeting with them.
Well, it could be that Naruto is on a mission and stumbles upon Kakashi's dogs in the middle of some sort of danger. The dogs could be protecting something important, and Naruto has to work with them to keep it safe. This would lead to Naruto getting to know their unique personalities and abilities better, and perhaps even learning some new skills from observing them.
A brave and curious Labrador named Max could be a main character. He's always eager to explore new areas of the spaceship and is the first to approach any new situation.
I think Naruto could be one of the main characters. Since he's Kakashi's student, he might have a special relationship with Kakashi's daughter too. Maybe he acts like an older brother to her.
Since I haven't read the 'kochugunshikan boukensha ni naru light novel', it's hard to say who the main characters are. However, if we go by the title, the main character is likely to be the one who becomes an adventurer while having the role of kochugunshikan. There could also be side characters like friends, family, or colleagues who play important roles in the story, perhaps helping or hindering the main character's adventures.
Sometimes other characters can also be important. For instance, Piccolo from Dragon Ball might show up to give Gohan some advice or help in the fanfiction. In the Naruto side, Sasuke could also be involved, perhaps starting off as an antagonist to the new team - up of Gohan and Naruto, but then later joining them. Also, characters like Bulma from Dragon Ball could play a role, maybe she creates some device that helps in the story, like a way to translate between the Saiyan and ninja languages.
The main characters are Stiles and the Cullens. Stiles is known for his ability to adapt in strange situations. When he meets the Cullens, their interactions will be centered around how they deal with each other's differences. The Cullens' vampiric abilities and Stiles' human (or whatever he is in his original context) nature will play a big part in their relationships in the fanfiction.
Obviously, Harry Potter is one of the main characters. He is the famous wizard boy from the books. And then, of course, Mr. and Mrs. Granger, Hermione's parents. They play important roles as they are the ones Harry is meeting.
Obviously, Naruto and Jiraiya are the main characters. Naruto is the young and energetic ninja with big dreams, while Jiraiya is the experienced and somewhat pervy sage who has a lot to teach Naruto.
Rick, who is known for his wild inventions and disregard for the norm, and RJ, who might be a character with his own set of values and abilities. Their clash or cooperation of personalities would be the focus. Maybe Rick is from a high - tech universe and RJ from a more down - to - earth place, and they have to bridge the gap between their worlds.
It's hard to say without more context, but they could be two characters who are ranked 4th and 10th in a particular system. For example, in a school of magic, the 4th best student in one class and the 10th best in another class meet.