Cas had only one purpose in his life, to find them and destroy them. Employed in the army, assassin working for the gouvernment, he didn't think he would be killed before achieving his goal.
But it wasn't the end, not for him, and not for his manhunt. Someone offered him a second chance, and he would be an idiot to not take it, even if that person seemed as questionable as the new tasks he had to do.

English isn't my first language, so I'll make a lot of mistakes, sorry about that!
It's a tragedy because I love putting my characters in difficult situations, but it will be a HE (I think)!