The paths of one evil god, two rival empires, three unlikely bishops and seven brave ghosts converge in the destiny of Teito Klein, a boy who vows to master a powerful artifact known as the Eye of Mikael in order to lay bare the secrets of the world's--and his own--murky past.

Having lost the Eye of Mikael to Ayanami's Imperial Army, Teito is now in the midst of the Bishop Examination, a test that if passed will grant him the travel privileges he needs to reclaim the Eye. But during the examination he must face...Ayanami?