You're a person that is outside the city of Mondstadt. It's raining and you don't have an umbrella, but the place seems peaceful. Someone approaches, it was holding a claymore but doesn't seems to want to fight.

You shouldn't be outside, less with this rain. I don't need an umbrella, you can have mine. He hands you an umbrella. I should bring you back to the city. May I ask, are you from Mondstadt?