Another character that could be affected is Makarov. As the guild master, he would have to deal with Lucy joining at an earlier time. He might have to allocate different tasks or missions for her, based on her level of experience at that point. Also, characters like Mirajane might have different conversations with Lucy earlier on. For instance, Mirajane could be the one to give Lucy a tour of the guild right when she joins, instead of later in the original timeline.
Erza would be one of the main characters affected. In the original story, when Lucy joins, Erza has a certain perception of her. But if Lucy joins earlier, Erza might see her as a more inexperienced mage and take her under her wing even more. Gray might also have different interactions with Lucy. He could be more of a mentor figure to her in the beginning, teaching her about controlling her magic in cold environments, which is something he's good at.
In this fanfiction, perhaps Lucy joins Fairy Tail right after she discovers her magic abilities. This would change a lot of the initial interactions. She could be more naive and inexperienced when joining, which would lead to different dynamics within the guild. Like, she might be more reliant on the others for guidance in using her magic, rather than having some basic skills already when she actually joins in the original story.
Lucy and Natsu are the central figures. Their relationship is at the core of this fanfiction. Lucy uses her wits and charm to tease Natsu, and Natsu responds with his typical fiery and passionate reactions. Their interactions are what drive the story forward, and any other characters that appear are there to either enhance or complicate their relationship dynamic.
The main characters are clearly Lucy and Natsu. Lucy is a celestial wizard in the Fairy Tail guild, known for her kind heart and determination. Natsu is a dragon slayer, hot - headed and powerful. In this fanfiction, their relationship is the focus, with Lucy taking the initiative to get closer to Natsu in a seductive way.
If Lucy never joined Fairy Tail, the friendships and relationships among the characters would form in a very different way. Also, many of the story arcs might not unfold as they do in the original plot.
Gray could be another great pairing. The contrast between his cool - headedness and Lucy's more emotional nature could create interesting storylines. For instance, they might be forced to work together on a mission where their differences initially cause problems but later lead to a stronger bond.
One aspect that could be explored in this fanfiction is Gajeel's growth in magic. As a kid joining Fairy Tail, he would be exposed to different types of magic and training methods. Maybe he starts off with his Iron Dragon Slayer magic being quite basic, and then with the help of the guild's masters and other members, he refines it. He could also learn new skills that complement his existing magic, which would not only make him stronger but also show his development within the guild.
Well, in such a fanfiction, Gajeel would bring a whole new energy. He might be more rebellious as a youngster. His journey to find his place in Fairy Tail could involve getting into small scuffles with other members at first. But as time passes, he realizes that Fairy Tail is a place where he can belong. His growth could be shown through his changing attitude towards the guild's rules and values.
If Kakashi were to join Fairy Tail, it would be an interesting mix. Kakashi is a highly skilled ninja from the Naruto universe, known for his Sharingan and diverse jutsu. In Fairy Tail, he'd likely bring in a whole new set of combat techniques. His calm and collected demeanor would contrast with some of the more boisterous members of Fairy Tail. He might also form interesting relationships. For example, he could bond with Erza over their shared combat experience and sense of justice. And his intelligence could be used to help plan strategies for the guild's battles.
Natsu would be a likely character to comfort Lucy. He's her close friend and often there for her. His warm and energetic nature could cheer her up. Another one could be Erza. Erza is strong and reliable, and she has a soft spot for her guildmates. She would probably offer Lucy some wise words and a shoulder to cry on. Happy, the little blue exceed, might also be there. His cute antics and friendly presence could make Lucy feel better.
Natsu would be a very likely character. Since he and Lucy are close friends in the original story, if Lucy travels back in time, Natsu might be one of the first people she seeks out. They could have adventures together in the past, with Natsu being his usual impulsive self and Lucy having to keep him in check with her knowledge of the future.