Darkness is moving in, and young exorcist Allen Walker is humanity's greatest hope against the wicked forces conspiring to bring civilization to its knees. Akuma - cruel spirits born of tragedy and lost souls - lurk in every shadow, willing and eager to do the bidding of their leader, the dread Millennium Earl.

Darkness is moving in, and young exorcist Allen Walker is humanity’s greatest hope against the wicked forces conspiring to bring civilization to its knees. Akuma - cruel spirits born of tragedy and lost souls - lurk in every shadow, willing and eager to do the bidding of their leader, the dread Millennium Earl. With an eye cursed to see evil in its truest form and blessed with an arm to slay soul-devouring demons, Allen stands ready to confront the gathering storm.

Valiant demon-hunter Allen Walker and his comrades remain steadfast in their quest to recover the lost Innocence while slaying the undead minions of evil's most terrifying army. When the treacherous Millennium Earl senses a shift in the balance of power, the wicked leader of the Akuma summons forth a band of rogue warriors who will shake the Black Order to its very core. The battle to decide the fate of mankind has begun. Should Walker fail, Innocence will be lost forever.

The battle between good and evil has a new cast of villains - the horrifying Clan of Noah. Summoned to Earth by the Millennium Earl, they are determined to recover the all-powerful Heart of Innocence and destroy all that is good. But young exorcist Allen Walker and his Black Order brethren will stop at nothing to halt the rising tide of darkness and preserve what little light remains in their world.

Charged with his most urgent mission yet, Allen Walker must match wits with Lulu Bell of the bloodthirsty Noah Clan while scouring the globe for his former master. His success ensures a future for this rapidly darkening world, but failure will spawn a rogue wave of death and destruction, beginning with Walker himself.