07-GHOST Vol. 13 (manga)
Teito joins the Black Hawks, unaware they are the very organization that has conspired to ruin his soul, end his life and revive the evil death god Verloren inside him. Using the military’s sinister laboratory, they intend to brainwash Teito into giving Verloren tangible form! But Teito’s true past resurfaces when he stumbles upon the grave of his best friend, Mikage.