Armani Phantomblade: The New World War.

Set 50 years after the events of the first book, while resting in the town of Ortaku with human visitors coming daily, Armani, Kumosaki and Death all retrieve devastating news that humans in the area of the south are all being wiped out by the demi-demon onslaught. The events that followed would start a new war, one that had catastrophic casualties and deaths on all three sides.