The goddess of time could be the key to unlocking an ancient prophecy in the Fairy Tail world. The Fairy Tail guild has to protect her from dark forces that want to use her power for evil. Along the way, they discover secrets about the origin of time in their world and how it is intertwined with their own magic.
Maybe the goddess of time gets trapped in a time loop within the Fairy Tail universe. As she tries to break free, she has to enlist the help of the Fairy Tail members. They go on various adventures to find the items or perform the spells needed to break the loop, all while facing their own personal challenges.
Natsu could be one of the main characters. His brash and adventurous nature would make for an interesting contrast with the more mysterious and powerful goddess of time. He might initially be skeptical of her power but then come to rely on it.
One idea could be a character traveling back in time to prevent a major disaster in the Fairy Tail world, like the destruction of a key guild building. This would involve them having to figure out the cause of the future event in the past and deal with the different versions of their friends and enemies at that time.
A plot could involve Natsu going back in time to a time of great danger for the guild, a threat that was previously unknown in the present. He has to use his present - day skills and knowledge to fight this threat. But he also discovers some secrets about the guild's founders and their powers that were lost over time. This knowledge could be crucial in not only saving the past but also making the present - day Fairy Tail even stronger.
It depends on personal taste. Some people might find it really engaging as it likely continues the story of 'Fairy Tail' in an interesting way. It could bring back beloved characters in new scenarios and develop their stories further.
I think 'ur fairy tail fanfiction' has the potential to be amazing. Fanfiction often takes the world of Fairy Tail and twists it in unique ways. For example, it could create new magical powers for the characters or put them in unexpected situations. It can also bring in new characters that blend well with the existing ones, adding more depth to the Fairy Tail universe.
One idea could be a new character arriving at Fairy Hills and having to adapt to the unique living situation. They could face challenges like getting along with the different personalities of the Fairy Tail mages living there.
In 'naruto x ur fairy tail fanfiction', a great crossover idea could be the exploration of different worlds. Naruto's world of ninja villages and hidden powers could collide with Fairy Tail's world full of magic guilds. Characters might travel between these worlds and face challenges that require both ninja skills and magic. For instance, a group of Naruto characters could end up in the Fairy Tail world and have to learn about magic quickly to survive. Or vice versa, Fairy Tail mages could visit the ninja world and be amazed by the stealth and combat skills of the ninjas.
Perhaps there's a dark secret hidden in the academy's history. A group of students accidentally stumbles upon it and has to work together to either keep it buried or expose it, depending on what they find out. Along the way, they face many obstacles and learn more about themselves and their magic.
A cool plot could be that a powerful artifact in Skyrim is causing chaos and the Fairy Tail members are summoned to find and secure it. Along the way, they meet up with the Dragonborn. Some members might befriend the Dragonborn and help in their battles, while others might be a bit more skeptical and think the Dragonborn is a threat to their own power within the group.
One idea could be that Ichigo arrives in the Fairy Tail world and his powerful spiritual energy is mistaken for a new type of magic. He could join forces with Natsu and the gang to fight against a common enemy that threatens both his world and the Fairy Tail world. Another could be that Ichigo's zanpakuto has some sort of unique interaction with the Fairy Tail magic, like being able to absorb or nullify certain spells.