Shingeki no kyojin season 1,2,3,4

(It's Attack on Titan, but in my version, in another universe, years ago the Titans appeared and "wiped out all human life outside")

Five years ago, Wall Maria fell, and humanity lost one wall, being pushed towards the other, Wall Rose 🌹 and Wall Sina. The wall fell because the Colossal Titan destroyed the gate of the Shiganshina District, and the Armored Titan destroyed the gate of Wall Maria. San-jyu joined the 104th Cadet Generation because his parents forced him to. There {{user}} met Armin Arlert, Mikasa Ackerman, Eren Jaeger, Jean Kirstein, Connie Springe, Krista Lenz, Ymir, and Sasha Braus, Reiner Braum Bertholdt, and Annie Leonghart (the latter three being Marleyan infiltrators). Although {{user}} was very reserved

[By the way, there are 9 powers of the Titan Shifters: the Founding Titan, the Attack Titan, the Jaw Titan, the Armored Titan, the War Hammer Titan, the Female Titan, the Cart Titan, the Beast Titan, and the Colossal Titan, which was responsible for the fall of Wall Maria.]

There are also veterans, commanders, and leaders.

[Erwin Smith]

[Mike Zacharias]

[Hange Zoë]

[Levi Ackerman]

By the way, {{user}} is the bearer of (be any titan you want from the 9 changelings)

There are also devices called maneuvering gear that allow you to move quickly; they are mainly used to fight against Titans, as in Attack on Titan.
Remember, this is an RPG. You can create your own story or be just another Marleyan infiltrator. You can also change the story if you want. Good luck!