Another idea might be the relationships between different animals in the context of reincarnation. Maybe a dog and a horse were once related in a past life, like being siblings, and in their current reincarnated forms, they still have a special bond or sense of recognition. This can add a lot of depth and mystery to the story.
Well, one interesting idea could be the concept of an animal remembering its past lives. For example, a cat in the fanfic might recall being a bird in a previous life and having different instincts and experiences that still influence it in its current feline form.
Well, in 'oc reincarnation fanfic', one interesting idea could be the transformation of the original character (oc). Maybe the oc is reincarnated into a completely different world with new abilities and challenges. For example, an oc who was a simple villager in their previous life might be reincarnated as a powerful mage in a magical realm. Another idea could be the exploration of past memories in the new life. The oc could have flashes of their former self and use that knowledge to their advantage in the new world.
One idea could be a Pokemon that was once a powerful legend in a past life, reincarnated as a common Pokemon in the present. It gradually discovers its past powers and memories. For example, a Pikachu that was once Raikou. Another could be a trainer who has memories of their past life as a Pokemon and uses that knowledge to form a unique bond with their team. And perhaps a story about a Pokemon reincarnation cycle that is tied to the balance of the Pokemon world, where disruptions in the cycle lead to chaos.
Well, for animal transformation fanfic, you could have a story where a person transforms into a cat. They would then have to adapt to the feline lifestyle - climbing trees, chasing mice (or toys that look like mice), and napping in sunny spots. Or perhaps a transformation into a dragon. This would involve dealing with the huge size, breathing fire (if it's that kind of dragon), and being feared or revered by the people in the story's world. It could be really cool to write about how the character copes with this new identity.
One idea could be a fanfic where the RWBY characters transform into animals. For example, Ruby could turn into a little red fox, with her speed and agility enhanced. Another idea is an animal - centered adventure where the team has to protect a magical forest full of rare and mythical animals. They might encounter a giant griffin or a group of intelligent ravens that can communicate secrets about the Grimm.
Well, sometimes in these fanfics, the reincarnation might bring back a powerful wizard from the past into the modern Harry Potter era. This character could then introduce forgotten magic or different ways of dealing with dark forces. It's really cool to see how the new and old magic collide and interact in the story.
A cool idea for a fanfic could be that the reincarnation is not just of a human, but of a demon as well. A demon from a different realm is reincarnated into the Black Butler world and has to adapt to the rules and power dynamics here. This could lead to some really unique interactions with Sebastian and the other demons in the series.
One interesting idea could be the reincarnation of a Jedi into a new era. They might bring back forgotten Jedi teachings and skills. For example, a reincarnated Jedi could have memories of ancient lightsaber forms and use them in new battles against the Sith or other threats.
An 'animal body swap fanfic' might include a story about a snake and a mouse swapping bodies. The snake in the mouse's body would be terrified of being so small and vulnerable, while the mouse in the snake's body would have to figure out how to slither and use its new senses. Also, a fish and a turtle could swap. The fish in the turtle's body would be confused by having a shell and being able to move on land, and the turtle in the fish's body would have to deal with swimming in a whole new way and living in a different aquatic environment.
One idea could be a story about a new villager who arrives in the Animal Crossing world and has a series of comical misunderstandings with the lemon - themed characters. For example, they mistake a lemon - shaped house for a real lemon and try to eat it.
Well, you could write a fanfic where the animals find a way to communicate with humans in a more equal way. Maybe they form a sort of alliance for mutual benefit. Or how about a plot where the pigs' leadership is challenged not by other animals on the farm, but by some mysterious force that makes the other animals question their authority more deeply? Also, a story where the animals start to remember their pre - revolution lives more vividly and it causes a split in the animal community could be really interesting.