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.
A great plot idea for an Attack on Titan real - life fanfic could be a post - apocalyptic scenario where the Titans have already overrun most of the world. The remaining humans live in small, fortified communities. The main character is a scavenger who stumbles upon a hidden cache of information about the Titans' origin. This knowledge could be the key to either defeating them or finding a new place to live safely away from them. They then embark on a dangerous journey to share this information with the other human settlements.
The plot could involve a conflict within the group of titan shifters because of the tenth titan. Some might see it as a threat, while others believe it's the solution to end the war. The tenth titan's power could be something that disrupts the balance between the different factions. For example, it could have the ability to nullify the powers of other titans, which would make it a highly sought - after and dangerous power.
One idea could be an OC who is a Titan Shifter with a unique ability like being able to control the elements while in Titan form. For example, they could create ice storms or fire blasts. Another could be an OC who has to struggle with the morality of being a Titan Shifter in a world where Titans are seen as pure evil. They might try to find a way to coexist with the other humans instead of just fighting Titans.
A great idea for an 'Attack on Titan' permanent titan fanfic would be to focus on the relationship between a permanent titan and a human. It could be a story of an unlikely friendship or a situation where the human is trying to study the titan to gain some sort of advantage in the fight against the other titans. The fanfic could also delve into the emotional and psychological aspects of the titan, if it has any remnants of its former human self, and how it copes with its existence.
One idea could be exploring an alternate world where the Titans have different abilities. For example, some Titans might be able to fly or control the elements. Another plot could revolve around the characters from the original 'Attack on Titan' being transported to a completely different world with its own set of rules and threats. Maybe in this new world, the Survey Corps has to form alliances with strange new creatures to fight against a common enemy.
Perhaps the friendly titan is a protector of a certain area outside the walls that the humans have not explored much. The story could be about the Survey Corps making an alliance with this titan. The titan guards the area from other dangerous titans, and in return, the humans help the titan when it gets injured. This could lead to a whole new understanding of the titan world and how they can co - exist with the friendly ones.
Another interesting concept could be a story where a group of characters from 'Attack on Titan' find themselves in a world full of Kaiju. They have to adapt their combat skills and use their knowledge of Titans to survive against these giant beasts. They might discover new ways to fight and new alliances along the way.
One interesting idea could be setting the story in a modern world where Titans are a result of a scientific experiment gone wrong. The characters could be part of a special military unit using modern weapons and technology to fight them. For example, they might use drones for surveillance and high - powered rifles. Another idea is to have the story focus on the psychological impact of living in a world with Titans on modern - day civilians, exploring themes like fear, paranoia, and survival in a society that's constantly under threat.
One idea could be exploring an alternate timeline where the main characters have different Titan powers. For example, Eren could have the Colossal Titan's power from the start. Another could be a story centered around a new character who joins the Survey Corps and has a unique ability to communicate with Titans on a deeper level. Maybe they try to find a peaceful coexistence with the Titans instead of just fighting them all the time.
One idea could be exploring an alternate timeline where Eren never became a Titan. Maybe the Scouts find a different way to fight the Titans, relying more on advanced technology and strategic warfare. Another could be a fanfiction centered around a new character who has a unique ability to communicate with Titans in a non - aggressive way, changing the whole dynamic of the battle.
One idea could be an OC who has a unique ability to communicate with the Titans. This could lead to a whole new way of dealing with the Titan threat, like trying to negotiate or understand their motives. Another plot could revolve around an OC from a different nation outside the Walls who has their own knowledge and skills regarding Titans. They could bring in new strategies and technologies.