Specific fic : Castiel Hurt by Hunters in the Bunker
Hello, I'm looking for a specific fic I read a while back and can't find again. I'm not sure whether it was on Ao3 or fanfiction.net.
The plot happens in the Men of Letters' bunker. Sam and Dean have offered to let some of the Apocalypse Universe's people to stay here for a while, and a group of them target Castiel as he's an Angel and so 'dangerous'.
They threaten/blackmail him into wearing a collar that blocks his abilities and powers, saying they'll feel safer if he does. Castiel accepts, thinking it'll make it easier for them to accept and trust him, and gets punched right after the collar being put into place.
I also remember they regularly take blood/grace from him? Castiel complies a few times, but at some point he refuses, they beat him up and Sam and Dean later find him in one of the Bunker's rooms.
That's all I remember, thank you for reading me :)