"Cross Marian is about to finish off Tyki Mikk when the Millennium Earl barges in, spreading chaos and destruction in every direction! The Earl's plan to build a new Ark using data downloads from the old one seems unstoppable, until Allen encounters a strange apparition that tells him to play the piano. Allen would be more than happy to oblige, but there's one slight problem--he never learned how!" -- from publisher's web site.

"Allen has been dropped into a flashback of his surly colleague Yu Kanda's past, where a parade of disturbing secrets reveal themselves - including one that could at long last explain what makes Yu tick!"--P. [4] of cover.

Allen has been revealed to be the embodiment of one of a special class of demons known as the Noah, but some of his friends don't want to believe he'd really go over to their side. Finding Allen and getting him to clear up the matter, however, proves to be a difficult and extremely dangerous proposition! --p.[4] of cover.

Allen and his fellow exorcist, Yu Kanda, discover the latter's background, including his true nature and porpose - in visions that flash back to his childhood.

Allen and Bookman have to stop the Akuma from obtaining the Egg. Things get complicated when the Akuma attempt to take Allen.