07-Ghost Series by Yuki Amemiya, Yukino Ichihara

Thousands of years ago, two powerful countries existed in a delicate balance of power. Each received a magical Eye to watch over it. Each thought they were invincible... until one fell. The destinies of both now depend on only one thing... a boy named Teito.

His best friend’s fate spurs Teito into trying to master the Bascule ? a powerful weapon that can harness and focus his innate power. Friends become enemies and rivals become allies as Teito begins to fulfill his destiny, and protect his fallen country from the minions of his former masters.

Teito, an orphan and former slave, attends the swanky Barsburg Academy where, and much to the amazement of his classmates, he aces the graduation exam, but just when things start to look up for Teito, a chance meeting with the man who murdered his father changes his life forever. Original.

Faced with the momentous task of passing the test to become a bishop, former slave and amnesiac Teito is forced to practice with his annoying roommate, Hakuren, but little does Teito know that Hakuren secretly faces his own problems, thanks to his nefarious family.

07-GHOST - Vol.5 (ID Comics / Zero Sum Comics) Manga. Japanese 07-GHOST 5巻 (IDコミックス ZERO-SUMコミックス) Set in a Gothic fantasy world, this is the story of Teito Klein, an orphaned slave who becomes top military academy student. However, an unexpected turn of events left him pursued by the forces of the Barsburg Empire, because of his exceptional ability to use a form of magic called Zaiphon. Now an escaping convict, Teito's sheltered by the church in District 7... more07-GHOST - Vol.5 (ID Comics / Zero Sum Comics) Manga. Japanese 07-GHOST 5巻 (IDコミックス ZERO-SUMコミックス) Set in a Gothic fantasy world, this is the story of Teito Klein, an orphaned slave who becomes top military academy student. However, an unexpected turn of events left him pursued by the forces of the Barsburg Empire, because of his exceptional ability to use a form of magic called Zaiphon. Now an escaping convict, Teito's sheltered by the church in District 7. Here, he discovered many mysteries surrounding himself, the church, and the Empire itself. less