In this fanfiction scenario, Natsu's character development could be quite complex. At first, he might be naive about the true nature of the dark guild. But as time passes, he realizes the evil they are involved in. This realization could lead to two paths. One, he could fully embrace the darkness, believing that it's the only way to survive or achieve his goals. Or two, he could try to rebel against the dark guild. If he takes the second path, he would have to use his wits and strength to fight against those he once called allies. Throughout this process, his relationships with others, both inside and outside the guild, would change drastically. His view of the world and magic would also be altered. For instance, he might start to question whether there is truly a clear line between good and bad magic, or if it's all about how it's used. This internal struggle would shape his character in ways that are very different from his original, carefree self in Fairy Tail.
Natsu may develop a more cynical side. Growing up in Fairy Tail, he was always surrounded by hope and friendship. But in a dark guild, he might see the worst in people and situations more often, which could lead to him becoming less trusting.
His character could become more conflicted. He has to balance his old values from Fairy Tail with the new, darker ones of the guild he joined.
He might lose his friends at Fairy Tail. Since Fairy Tail is all about friendship and light, joining a dark guild would put him at odds with his former comrades.
Emotionally, Natsu could become more empathetic. If he meets characters in the dark guild who had a difficult past that led them to the dark side, he might start to see things from their perspective. This doesn't mean he would support their actions, but he would understand them better. For example, if there's a character in the dark guild who was orphaned and turned to dark magic for survival, Natsu might feel sympathy for them and try to offer an alternative path rather than just attacking them. This would show a more mature and compassionate side of his character that wasn't as prominent before.
In this fanfiction, the characters would have to adapt to a more cutthroat environment. Natsu's friends from Fairy Tail who might join him in the dark guild would struggle with their new identities. They would have to learn to use magic in more aggressive and unorthodox ways. Their moral compasses would be tested as they engage in activities that are considered 'dark' in the magic world. Some might even have a complete character transformation, going from good - natured mages to feared members of the dark guild.
She might lose her friends. In the original story, her friends in Fairy Tail are a big part of her life. If she joins a dark guild, they would likely see her as a traitor. For example, Natsu might be very disappointed and try to bring her back to the right side.
The plot could involve Naruto being an outcast in the ninja world after some false accusations. The dark guild offers him a place where he feels accepted. However, the guild's activities are against the values he once held. So he has to decide whether to stay and try to change the guild from within or break away and face the consequences of having associated with them in the first place. It could also lead to some interesting battles where Naruto uses his unique skills against his former comrades who now see him as a threat.
Well, one possible plot could be that Natsu, after some sort of betrayal in Fairy Tail, decides to create his own dark guild. He might gather some disgruntled mages who also feel wronged by the mainstream guilds. Their goal could be to change the magic world's power structure in a more radical way, using darker forms of magic that are usually shunned. For example, they could explore ancient and forbidden magic spells to gain an edge over other guilds.
It could be the leader of the dark guild. This person would likely have a very different ideology from Naruto's. Maybe the leader believes in using extreme and unethical means to gain power, like sacrificing innocent lives for dark magic. Naruto would constantly clash with this leader as he tries to uphold his own values.
In some fanfictions, Natsu could be framed by a dark guild as a traitor to Fairy Tail. The dark guild spreads false rumors and evidence, causing Fairy Tail to turn against him. Natsu then has to prove his innocence while also taking on the dark guild that started it all. This would lead to a lot of internal conflict within Fairy Tail and also intense battles between Natsu and the dark guild members.
Her Celestial Spirit powers could be misused. Instead of using her spirits for good, like in Fairy Tail, she might be made to use them to intimidate or harm others. The spirits might also be reluctant to follow her commands if they sense she is on the wrong path.
Luke's character would become much more complex. He would likely start to show more aggression and a lack of mercy. His once - bright eyes might become clouded with darkness. For example, he could start using the Force in cruel ways, like choking his enemies without hesitation as Vader did.