One possible plot could be that Natsu and Mirajane join Fairy Tail at different times. Natsu might bring his usual enthusiasm and powerful fire - based magic. He could quickly get into all sorts of adventures, making friends and enemies alike. Mirajane, on the other hand, could use her Take - Over magic to be a great asset in battles. Their joining could lead to new team - ups within the guild, like Natsu and Mirajane going on a mission together to stop a dark wizard who is causing chaos in a nearby town. They'd face challenges, but their combined skills would help them overcome the odds.
It could be a powerful dark wizard who has a grudge against Fairy Tail. This wizard might see Natsu and Mirajane's joining as an opportunity to strike at the guild when it's in a state of flux. He could be someone who was once defeated by Fairy Tail in the past and has spent years building up his power for revenge.
Entropy in a Fairy Tail fanfiction related to Natsu and Mirajane could refer to the chaos or disorder within their relationship or the situations they face. It might be used to add an element of unpredictability to their interactions, like in a story where Natsu's impulsive nature and Mirajane's more complex personality create a chaotic dynamic that is full of unexpected twists and turns.
One characteristic is the exploration of their personalities. Natsu's brash and hot - headed nature contrasts with Mirajane's more composed and sometimes mysterious side. In fanfiction, this contrast often leads to interesting interactions. For example, Natsu might be the one to break through Mirajane's reserved exterior with his straightforwardness.
There are indeed some great ones. In some fanfictions, they might start off as friends but gradually realize their deeper feelings for each other. For example, a story could have Natsu noticing Mirajane's different sides during a difficult mission, and that newfound understanding leads to romantic feelings. Another common theme is where Mirajane has to help Natsu deal with his past traumas, and through that process, love blossoms between them.
In fanfiction, Natsu and Mirajane's relationship can be really interesting. Some fanfics might start with their initial interactions in the guild. Natsu is often shown as his energetic self, and Mirajane, with her kind yet mysterious side. Their relationship could develop gradually as they go on adventures together in the fan - created stories. Maybe Natsu helps Mirajane overcome some past traumas she has, like her issues related to her demon side. And in return, Mirajane could offer Natsu more emotional support than he's used to, since he usually just focuses on fighting and protecting the guild.
In fanfiction, Mirajane and Natsu could have a very interesting mentor - mentee relationship. Mirajane, being more experienced, could teach Natsu some new magic techniques or how to better control his power. This would add a new dynamic to their interactions within the Fairy Tail guild.
A common type of fanfiction might be a love story between them. Despite their different personalities, they could gradually fall in love. For example, during a long and dangerous quest, they start to see each other in a new light. Or perhaps a story where Mirajane's past traumas are revealed to Natsu, and he helps her overcome them, strengthening their bond in the process.
Perhaps they leave because of a disagreement within the guild. Maybe there's a new policy or a decision made by the guild master that they don't agree with. For example, if the guild decides to get involved in a war that they think is unjust, they might choose to leave rather than participate against their beliefs.
The idea of entropy in a Natsu and Mirajane's child - related Fairy Tail fanfiction could be really cool. Entropy often represents chaos and disorder. In the context of the story, it might be that the child is born during a time of great upheaval in the Fairy Tail world. Their powers could be linked to entropy, meaning they can either create or restore order. Maybe the child has the ability to sense when things are going wrong in the magical balance of the world. For instance, if a dark magic is spreading and causing disorder, the child's entropy - related magic could be the key to countering it, by either absorbing the chaos or transforming it into something positive. This would make for a very unique and exciting fanfiction concept.