"Hordes of akuma are arriving in Edo to join the Earl, who has found a nefarious use for one of the greatest of all biblical artifacts. Meanwhile, one akuma has invaded the Asian Branch of the Dark Order to take care of Allen once and for all. Allen doesn't appear to stand a chance, but the very nature of the akuma's attack starts something no one could have anticipated, and might wind up changing the fate of the world!"--P. [4] of cover.

After Allen disappears, Lavi and Lenalee rush to find him, only to end up confronting a horde of akuma pursuing Allen's golem Timcanpy.

"Following a brutal battle with a Level 4 akuma, Allen seems to be undergoing an odd and disturbing change. Meanwhile, a new breed of Exorcist is introduced at Black Order headquarters and, at Asia Branch, Kanda learns some disturbing things about his own status in the Black Order's Exorcist operations. Needless to say, Allen and his friends are ill prepared to deal with the simultaneous appearance of the servants of the Millennium Earl all over the...

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.