Fairy Tail Natsu Harem Fanfiction: What are some interesting plot ideas?

One idea could be that Natsu is exiled due to a false accusation of using dark magic. He then has to journey alone to prove his innocence, encountering new friends and foes along the way. Maybe he discovers a new form of magic during his exile.

One idea could be that Natsu and Irene are forced to team up to defeat a powerful dark magic user. Their opposing personalities at first create conflict, but as they face challenges together, they learn to respect each other's powers.

Perhaps a plot where Future Natsu has lost his memory of the future but still has his enhanced powers. The Fairy Tail guild has to figure out who he is and why he's there while he tries to regain his memories. This could lead to many comical and heartwarming moments as he bonds with the guild members all over again.

In this fanfiction, Natsu could discover that his abandonment was part of a bigger plan within Fairy Tail to protect him from a greater threat. He might initially be angry and resentful, but as he uncovers the truth, he has to decide whether to forgive his old guild or not. He could also meet other characters who were also once abandoned and form a bond with them to face the challenges together.

One idea could be Natsu crossing over into a modern-day world. He'd be confused by all the technology but use his magic in unexpected ways, like using fire magic to power up electrical devices. Another could be a crossover with a different anime world where Natsu has to team up with new characters to fight a common enemy. For example, in a world full of mecha, he might use his fire to overheat the enemy mechas.

A plot idea could be that an old enemy from Natsu's past returns and targets Lucy to get to Natsu. Natsu then has to go all out to protect Lucy, and in the process, they both learn more about each other's fears and insecurities. Or perhaps there is a magical competition in which Lucy and Natsu team up, and they face various challenges that test not only their magical abilities but also their friendship and trust in each other.

One idea could be Irene somehow being redeemed through her interactions with Natsu. Maybe she gets a second chance at life and has to learn to be a better person with Natsu as her guide. Another plot could involve Natsu and Irene teaming up against a common, extremely powerful enemy. They start off distrusting each other but gradually come to respect and rely on one another.

One plot idea could be that Natsu and Minerva are forced to team up on a dangerous mission. They start off not getting along due to their different personalities and past rivalries. But as they face various challenges together, they gradually learn to respect each other and develop a friendship. Maybe they have to battle a powerful dark wizard who has a connection to both of their pasts.

One plot idea could be that Zeref discovers a way to reverse his curse through Natsu. Since Natsu is his creation, there might be some hidden connection that could be explored. Maybe Zeref tries to use Natsu's unique dragon - slayer magic to break the chains of his dark magic.

One idea could be Natsu going on a solo mission to a far - off land that has a different type of magic entirely. He has to learn to adapt and control this new magic to complete his task. Another could be Natsu training a new generation of Fairy Tail wizards, passing on his unique brand of magic and combat skills.