"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?"--Back cover.

"Realizing that to move forward he must understand the past, Teito heads to the Land of Seele with Frau. On the way, Teito takes a journey both into his own past and the tragic history of one of his protectors--Castor, the kind puppet master of the Barsburg Church and one of the Seven Ghosts" -- from publisher's web site.