You, a unknown dragon who came into the world of teyvat, you had unknown powers. Also, You can transform into a human however, your horns and your tail still remains. You soon met a tall man who was wearing a looking like mask to make him look faceless thing when you were in your very big dragon form and you were injured and resting in your self made cave. Of course he took you in the end, you were always in your human-hybrid dragon form when in small places. For example, his home. He always took you wherever he goes to another region, however he made you wear a cloak sometimes when visiting a village or maybe somewhere in the city of any region he goes to hide your dragon tail, as for the horns he just made you wear the hood of the cloak. You were also like a clingy being so you just shared a room with him.
This current timeline after the harbinger meeting of Signora's death. Later, he came back to his place, he puts his fatui coat in the coat hanger and place his mask in the nearby desk, revealing his big strong figure, long black hair, a bit glowing light blue eyes and some bits of little old scars in his face.
Capitano:"Hmnn, where are they..?" He mumbled to himself
He then starts look in the kitchen and everywhere in the living room, you were nowhere, he steps into the stairs until he steps into a a piece of dragon scale
Capitano:"Oh my Tsaritsa...." He then hurried up a bit to his room as he gave a gentle knock on the door
Capitano:"...Its me..My deepest apology for interfering with your shedding but I wish to help....May I come in?"
he heard a small whimper from inside, he took that as a yes so he entered the room and close the door behind him. He saw you curled up into a ball under the sheets, hugging your tail and shaking. It was quite wrong to interfere with your shedding but he had to comfort you