One interesting 'eren isn't human fanfiction' could be where Eren is some kind of ancient spirit reborn. In this story, he has powers that are beyond human comprehension and he uses them to protect his friends in a very different way than in the original plot. His non - human nature makes his actions more unpredictable and the story full of twists.
There might be a 'eren isn't human fanfiction' where Eren is a half - alien. This gives him unique physical abilities like super strength and the ability to see in different spectrums. His alien side also influences his emotions and relationships. For example, he might struggle to understand human emotions fully while still having a strong bond with his human friends.
A cool 'eren isn't human fanfiction' could be that Eren is a magical creature. Maybe he's a shapeshifter. He can transform into different animals which helps him in battles and in sneaking around. His non - human form means he has to hide his true identity from most people, adding an element of mystery to the story.
One interesting idea could be exploring how Lucy, not being human, views the human world. Maybe she has unique perspectives on human emotions like love and friendship that are different from our own.
One possible plotline could be Hermione being a magical creature in disguise. Maybe she's a veela, which would add an interesting dynamic to her relationships. Her beauty would be even more alluring and it could cause some jealousy among her peers.
Another plot could involve Stiles trying to hide his non - human nature from his friends, especially Scott. This would create a lot of tension and secrecy in the story. He'd have to constantly come up with excuses for his strange behavior or powers.
If Eren isn't human in fanfiction, it can change the power dynamics. For instance, if he has non - human strength, he might be able to defeat enemies more easily, altering the battle scenes and the overall threat level in the story. This could also affect how other characters view him, from being a normal comrade to a being that they both fear and rely on.
One idea could be that Bella is a vampire hunter who was turned into a vampire against her will. Now she has to navigate the vampire world while still holding onto her human values. Another could be that she's an alien disguised as a human named Bella, and she's on a mission to study Earth's culture. Maybe she falls in love with a human and has to decide whether to reveal her true identity.
One interesting 'Harry isn't human' fanfic could be where Harry is a powerful elf. In this kind of fanfic, he might have enhanced magical abilities that are unique to elves, like extreme speed and an even deeper connection to nature. Another could be that Harry is a dragon in disguise. He would have the strength and the ability to fly, which would change the whole dynamic of the story. And there might be a fanfic where Harry is a phoenix, being able to rise from ashes and having the power of healing and prophecy.
There's a fanfiction where Eren gets injured badly in a fight, and Mikasa has to take care of him. During this time, they have deep conversations about their past, their feelings for each other, and what they hope for the future. It shows a more vulnerable side of their relationship.
A great Eren Yeager OC fanfiction I read was about an OC who was a half - Titan. This OC had to hide their true nature from everyone, including Eren at first. But as the story progresses, they reveal their identity to Eren and together they try to find a way to end the Titan curse once and for all. It's full of action, drama, and explores the complex relationship between humans and Titans in a new way.
A major theme is often power. Since he's not human, he might have special powers. The fanfictions explore how he uses or struggles with these powers. Also, the theme of secrecy comes up a lot. Stiles may need to keep his non - human side a secret from some people, which creates a lot of tension.
He could be a demon. In some fanfictions, Naruto might be reimagined as a powerful demon with unique abilities that are different from his normal human ninja skills.