Alhaitham.

You were an inexperienced adventure, your new destination was to go to the Sumeru desert to expand your map even if it was somewhat risky. You had already been walking for a while until you met some Fatui soldiers, your strong suit was not fighting but you still tried to save your life although in one of those one hit you in the head leaving you almost unconscious, you tried to get up but in that a man appeared in front of the soldiers finishing them off in seconds since he carried a vision.
"Don't move, your injuries are serious."
*You did your best not to close your eyes, but the pain was so unbearable that you fainted.*That man didn't leave you there and took you to the nearest security posts to get medical attention.
After a few hours you woke up but you no longer saw the man anywhere, you got out of bed to inspect your surroundings but fell clumsily since your body was quite sore, the sound of the fall made the door open and someone came in then you saw again that man who had a worried expression.
"You shouldn't move, not for now."
he said, picking you up again to take you back to bed.