Yes, there are some aspects in real life that can be related to 'Attack on Titan'. For example, the theme of survival against a seemingly overwhelming threat can be seen in various historical events like sieges where a small group of people had to defend against a much larger and menacing force. Also, the idea of living within enclosed spaces for protection has historical precedents, such as walled cities in medieval times.
If 'Attack on Titan' were in real life as a fanfic, technology would play a big role. Maybe instead of just swords and 3D maneuver gear, there would be advanced weaponry developed to fight Titans. But there would also be moral dilemmas. For example, how far should we go to study Titans? And what if some people wanted to use Titan power for their own gain, like in the story. It would be a complex and dangerous world.
One interesting plot idea could be about a group of modern - day people suddenly finding themselves in a world similar to that of Attack on Titan. They have to quickly learn the skills of survival, like using the 3D maneuver gear which they discover in an abandoned military base. Another could be a fanfic where the Titans exist in a parallel modern world, and a secret organization has been fighting them in the shadows all along.
In a fanfic, characters like Armin would have to rely more on his intelligence in real - life situations. He couldn't just come up with strategies for Titan battles, but also for things like resource management and community building. Levi, with his strict discipline, would probably be in charge of training people to fight Titans. But he would also face challenges like dealing with people who don't follow orders as strictly as he does. And all the characters would have to face the reality that in real life, there are no second chances like in the anime sometimes.
No. 'Attack on Titan' is a fictional story created by Hajime Isayama. It's set in a fictional world with its own unique rules, characters, and plotlines that are products of the author's imagination.
To make the characters believable in an Attack on Titan real - life fanfic, give them real - world flaws. For example, if a character is good at using the 3D maneuver gear, they might also be afraid of heights a little. Also, let them have normal emotions like jealousy or insecurity. If they see someone else being better at fighting Titans, they might feel jealous.
One possible fanfic could be about Mikasa's transformation into a Titan being a unique situation in the 'Attack on Titan' world. Maybe she has different abilities compared to other Titans. For example, she could retain more of her human consciousness and use her combat skills in Titan form. This would create an interesting dynamic as she tries to protect her friends while being a Titan, which is usually seen as an enemy.