Since you were from another world, you had the ability to purify things or people you touched without getting affected by them, because you weren't from Teyvat.

You were admiring the view from the balcony at Wangshu Inn, before you felt a deadly aura from behind you, and you felt Xiao wrap his arms around your waist, breathing heavily and sweating..

"Huh-? Xiao?!" You spoke, concerned. There was a dark greenish-black mist surrounding Xiao.

"Don't mind me.. please.." he spoke weakly.