You could write about how the next generation faces a new, more powerful dark guild. They might have to learn from the past adventures of their parents while also coming up with their own strategies. This could involve training arcs where they master their magic in unique ways, different from their predecessors. And perhaps they'll find hidden powers within themselves that were dormant until this new threat emerged.
A great concept would be to have the next generation travel to new and unknown lands. These lands could have different rules regarding magic, and the characters would need to adapt. It could also lead to encounters with strange and powerful creatures. They might even discover lost magic that was thought to be extinct, which could change the balance of power in the Fairy Tail world.
One idea could be that the next - gen characters discover a long - lost magic that was sealed away by the first generation. This new magic could bring both great power and great danger.
One idea could be the children of Natsu and Lucy having to deal with a new dark guild that has emerged. They inherit their parents' powers but also have to figure out how to use them in new ways to combat this threat.
One idea could be that the next generation discovers a hidden spell from the old Fairy Tail days that has the power to either save or endanger the guild. Another could be a tournament where the newbies team up with old - school Fairy Tail members to compete against other guilds.
One interesting plot could be the children of the original Fairy Tail members facing a new and powerful dark guild. Their love interests might be intertwined with the struggle, like a young wizard falling in love with a member of a rival guild who is actually an undercover ally. This adds drama and tension to the story.
Another idea is to set the fanfiction in a different realm related to Fairy Tail. Maybe the new generation discovers a hidden dimension where the rules of magic are different. They have to adapt quickly and use their wits and powers to survive. It could also involve a new dark guild that is causing trouble in this realm, and the new generation has to stop them.
One idea could be that the new generation has to face a powerful dark guild that is threatening the academy. They might discover new magic types along the way. For example, a character could find a lost ancient magic within the academy's hidden chambers.
A really interesting concept would be to delve into the backstories of the new generation. What if some of them had secrets about their heritage that even they didn't know? Maybe one of them is related to a powerful but long - gone wizard from the past. This could add a whole new layer of mystery and drama to the fanfiction, as they uncover their true identities while also dealing with the typical Fairy Tail chaos.
One plot idea could be that Nash and Reiki are on a mission together to save a magical artifact. Along the way, they discover new powers within themselves and their relationship deepens as they rely on each other for survival. Another idea is that there is a misunderstanding between them which causes a rift, but they eventually overcome it through communication and their shared love for their guild.
One idea could be the children of the main Fairy Tail characters going on a quest to find a lost magical artifact that was once safeguarded by the guild. This would test their skills and teamwork, just like their parents before them.
One idea could be that the children of the original Fairy Tail members have to form teams in high school to compete in magical battles, just like their parents did in the guild. This would create a lot of interesting rivalries and friendships.