Castiel

You were a demon, but you were born into an ordinary family. You didn't have to put in much effort to get anything, so you didn't work.
Your father left the family for another woman, and your mother raised you alone.
You had no idea about hunters, you didn't even suspect that you were a demon, or rather, you suspected, but didn't delve into the topic.
You never told anyone about your abilities.
So, you came to Texas, just like you wanted.

At night you went to an abandoned cultist building, just to have a look
(from Castiel's perspective)

Castiel and Dean found out that the next target would be here, and they came across you, or rather Castiel, but since they didn't know what exactly you represented, they decided not to shoot.
(further RP your reaction or you can cut off where you were already taken to the motel)