Is Lucy the protagonist of the Fairy's Tail? This was because many of the plots were centered around Lucy and the twelve keys. In fact, Lucy even returned from the future to the present.

One popular theme is Lucy's growth as a wizard. Fans often explore how she overcomes new challenges and becomes stronger. Another theme is her relationships, not just romantic ones but also her friendships within the guild. For example, her bond with Natsu and how they support each other through tough times.

Well, a big theme is the growth of their relationship. It doesn't have to be romantic in a sexual way. It can be about how they become closer as comrades. Also, the theme of protecting each other is quite common. Natsu is always ready to protect Lucy, and vice versa, and fanfictions like to play around with this dynamic, showing different scenarios where they safeguard one another.

The plot could start with Erza feeling like she needs a change. She's been through so much, and her long hair has always been a part of her identity. But she decides it's time for something new. She goes to a local barber in Magnolia and gets a haircut. Her new look causes a stir in the guild. Some of the younger members look up to her even more for her boldness, while some of the older members are a bit taken aback. As the story progresses, Erza finds that her new haircut gives her a different kind of confidence. She takes on tougher missions and even inspires other female members of the guild to make changes in their own lives.

One interesting plot could be that Lucy's sister, who has been hidden away for some reason, suddenly shows up in the Fairy Tail guild. She might have a unique magic that no one has seen before, like the ability to control time on a small scale. This could lead to all sorts of adventures and challenges for the guild members as they try to figure out how to handle this new power.

One interesting plot could be Lucy traveling back in time to the founding of Fairy Tail. She could then meet the original members and influence the guild's early development in unexpected ways, like helping to create some of the guild's most important rules.

She might use her celestial spirits in unexpected ways against the guild. For example, she could have her spirits create illusions to embarrass the members.

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.

In some fanfictions, Lucy might be portrayed as a friend to Frosch. She could be someone who looks out for the little Exceed, given her kind - hearted nature in the Fairy Tail series.

One possible fanfiction could be that Lucy is invited to a grand ball in the magical world. As she enters the ballroom, a mysterious melody starts playing. Lucy, being the confident and graceful character she is, starts to dance. Her celestial spirits watch in awe as she twirls around, her dress flowing with each movement. It could be a dance that not only showcases her beauty but also her connection to the magic within her, as she uses a bit of her magic to create a sparkling effect around her while she dances.

In some fanfictions, their relationship could be a romantic one. Writers might explore how they meet and fall in love within the Fairy Tail universe.