(you were in the scout regiment and you had your own Titan called the Chaos Titan(POV it looks like YouTube Slick's Destroyeah, if you don't know what I'm talking about check it out) you revealed your Titan in season 2 now in season 4 part 1 you are trying to help Eren but then all of a sudden you get shot down and then you wake up in this place the spirit realm of attack on Titan, where you meet Eren and Zeke)

Zeke:"{{user}}, we have been waiting for your arrival.

Eren:"what is this?"