Obviously, Naruto would be one of the main characters. And probably some of the key Fairy Tail characters like Natsu, who is known for his fire - dragon slayer magic, and Lucy, who uses celestial spirit magic. They are likely to interact with Naruto in the fanfiction.
Naruto is the central character as the title implies. In addition to the well - known Fairy Tail characters, there might be some original characters created specifically for this fanfiction. However, we can be sure that characters like Gray, who uses ice - make magic, would also be important. He might have some interesting interactions with Naruto, perhaps comparing their different combat styles - Naruto's ninja moves versus Gray's ice - make abilities.
Since Naruto is in the title as 'the master', he is a main character. From Fairy Tail, Erza would also be a main character. She is a very strong and skilled mage. Her interactions with Naruto could be quite interesting. Maybe she tries to learn from Naruto's combat experience, or they team up to fight against a common enemy. Also, Happy, Natsu's flying cat sidekick, could be in the story, adding some comical elements as he reacts to Naruto's strange (to him) ninja ways.
In many 'naruto fairy tail master fanfiction' stories, characters like Sasuke from Naruto and Gray from Fairy Tail also play important roles. Sasuke's brooding nature and powerful Sharingan abilities, combined with Gray's ice - make magic, can create some interesting dynamics. They might be rivals at times, or they could end up working together against a common threat that emerges from the merging of the two universes.
Another possible main character could be Erza from Fairy Tail. She is a strong and respected member of the guild. Her leadership skills and combat abilities could be crucial in the story. She might initially be skeptical of Naruto but then come to respect him as he proves his worth as a guardian. And Naruto himself would have his own set of friends and allies from his world that could potentially make appearances or be mentioned, like Sasuke or Kakashi, even if they are not directly in the Fairy Tail world, their influence on Naruto could still play a part in the story.
Well, Naruto is a given as the main character who is being raised in the Fairy Tail environment. Gray would be an interesting addition. His cool - headedness could contrast with Naruto's sometimes impulsive nature. Erza would also be a key character. She could be like an older sister figure to Naruto, teaching him discipline and how to handle difficult situations, both in battles and in the guild.
Obviously, Naruto is one of the main characters as the title mentions him leaving. And in the context of Fairy Tail, characters like Natsu, Lucy, and Erza are likely to be important too. They would probably interact with Naruto during his time in Fairy Tail and might be part of the reason he decides to leave, either through their relationships or the events they are involved in together.
Well, Naruto is a given as the anti - hero. From Fairy Tail, Makarov could play an important role. As the guild master, he would have to deal with Naruto's presence in the guild. Gajeel could also be a main character. He has his own rough past and might be able to relate to Naruto in some ways. And Wendy, with her kind nature, could be the one who tries to understand Naruto better than the others and maybe even tries to bring out the hero in him instead of the anti - hero.
Sasuke could also be an interesting addition to this fanfiction. His more brooding and powerful nature would contrast well with the generally more light - hearted Fairy Tail characters. And of course, characters like Erza from Fairy Tail, with her strong leadership and combat skills, would be fascinating to pair up with Naruto in different scenarios.
Obviously, Natsu is a very popular character as it's in the title. He is often the center of many fanfictions. Lucy is also quite popular as she has a close relationship with Natsu in the original series. Their dynamic often plays a big part in fanfictions.
It's hard to say without actually reading it, but it could feature the classic Fairy Tail characters like Natsu, Lucy, Gray, and Erza. They are the most popular and central to the original series.
The main characters could also be Sasuke from Naruto and Gray from Fairy Tail. Sasuke's cool and brooding nature combined with his Sharingan abilities would be a draw. Gray's ice - make magic and his habit of accidentally stripping could add some humor. In the harem, characters like Ino from Naruto and Levy from Fairy Tail could be part of it. Ino's mind - control jutsu and Levy's intelligence with books and runes would bring different elements to the story.
In fanfiction, if Naruto becomes the master of Fairy Tail, it would be an amazing blend of two very different universes. Naruto's skills like his shadow clones could be used in interesting ways within Fairy Tail. For example, he could send clones on different quests at the same time. His determination and leadership qualities from his own world might also bring a new dynamic to Fairy Tail. He could inspire the members to be more united and strive for greater power in a different way than Makarov did.