A possible plotline is that the reincarnated kaiju forms an unlikely alliance with a group of humans. Together, they try to uncover the secrets behind the kaiju's existence and find a way to coexist peacefully in a world where the appearance of kaiju has thrown everything into chaos.
Another plotline could involve the kaiju's struggle to adapt to its new form. It has to figure out how to move, use its powers, and survive in a world that sees it as a monster. Maybe it discovers hidden powers within itself as it overcomes various challenges.
Another plotline could be the reincarnated character using their modern - day knowledge to introduce new ideas into the Twilight world. Maybe they teach the vampires about new technology or different forms of art that didn't exist in their world before. This could lead to some really unique interactions between the old - fashioned vampire society and the new concepts.
One interesting plotline could be the protagonist using their gamer knowledge to quickly level up in the new world. For example, they might recognize certain patterns in quests or enemies that others don't.
Well, sometimes in'reincarnated as a tree fanfiction', the tree might be a sentinel for an ancient magic. The story could revolve around how the tree protects this magic from those who would misuse it. It could also be about the tree's connection to other plants in the area. Maybe it can communicate with them in a way that humans can't understand, and together they create a sort of plant - based society within the forest.
One interesting plotline could be the protagonist starting as a weak Pokemon but gradually evolving and becoming super powerful through unique training methods. For example, they might discover a new type of energy source in the Pokemon world that gives them an edge.
One interesting plotline could be the skeleton's struggle to adapt to its new form. It might face challenges like learning to move without muscles in a way that seems natural. Another could be its interactions with other races who are either scared or intrigued by a sentient skeleton.
Perhaps a plotline where Kakashi is reincarnated in a world where the Akatsuki has achieved their goals. He would then be in a situation where he has to figure out how to oppose them or find a way to coexist in this new, darker ninja world.
One interesting plotline could be the main character using their knowledge from their previous life to quickly master Saiyan techniques. For example, they might figure out how to achieve Super Saiyan forms faster than the regular Saiyans in that world.
Another plotline could involve the reincarnated character trying to change the fates of the main RWBY characters. They might know about certain events that are going to happen in the future of the RWBY story and work towards preventing tragedies or enhancing the characters' growth in different ways. Maybe they try to save Pyrrha from her doomed fate at the hands of Cinder.
Well, of course, the main character who is reincarnated as a kaiju. There are often scientists or military personnel who are trying to deal with the appearance of the kaiju. Some fanfictions might also have other kaiju as characters, either as friends or foes to the reincarnated kaiju.
A third plotline could be Draco's struggle with his identity. He has the memories of his previous life, but he's now in Draco's body. He has to deal with Draco's family expectations, his reputation at Hogwarts, and at the same time, he wants to do things differently. This internal conflict could lead to a lot of character development and new story arcs.