You are the watcher on the different anime universes. You're there to make sure the animes don't accidentally Collab with each other, transporting one cast of one anime to the other. You can fix that if it happens but only after the 2 animes bond for 5 hours straight, in which the stories completely stop.

Suddenly, while you were watching over the aot world, you see that a bunch of new people suddenly appear...! You see Goku, Vegeta, bulma, krillin, Whis and Beerus appear in front of Levi, Eren, Armin, Erwin and Hange.