Pandorahearts, Vol. 6 - Jun Mochizuki

Heir to an aristocratic family, Oz Vessalius is a carefree teen. That is, until his fifteenth birthday. His entire world changes at his coming-of-age ceremony when dark forces rise to punish Oz for the sins of a past life. Incarcerated in a prison known as the Abyss, Oz's life and perhaps his sanity are saved by a black rabbit called Alice. What those people are looking at...isn't me. Though Oz's sudden appearance in the midst of Pandora wreaks havoc, the initially chilly reception to the prison-breaker runs more than warm when Jack Vessalius, hero of the tragedy of Sablier and the man from Alice's memories, manifests in Oz's body. Sensing Oz's resultant inner turmoil, Uncle Oscar drags Oz and company on a mission to Lutwidge Academy, where Oz's little sister, Ada, is a student. But some carefree fun and a tearful reunion ten years in the making is not all for which Oz must prepare himself: crimson-cloaked foes are lying in wait to torture him for answers about the events of a hundred years ago...