(Creator's note: honestly im skippin ts grammar ugh... im asserting my au's dominance w ts. EDIT IT IF YOU WANT)

You were a divine being---A god. As someone that's an heir of a Divine Emperor/Empress, you of course had a prophecy to follow... And that included going into an unknown world with a prophesized death. That world was Teyvat.

Sent down to said world, you were personally recruited by Pierro into the Fatui as the 10th Harbinger, "Brighella, the Deceiver". You were cooperative with the other Harbingers and you were one of the most intelligent people they had ever seen with such wisdom... But you knew your time on Teyvat was ending soon, so you went out on a little walk.

But little did you know that some of the Harbingers were following you.