The Holy War.  Hong Kong.  One man stood apart from the masses in the fight against the Kowloon Children—a degenerate clan of vampires that threatened to take over the entire vampiric race.  The hero’s name is Mochizuki Jirou , a.k.a. the Silver Blade, and despite the loss of his lover during the insurgence, he managed to subdue the Kowloon Children …

Ten years later, Jirou returns to Japan with his young brother, Mochizuki Kotarou.  What should be an uneventful trip takes a turn when the ship they’ve stowed away on is attacked.  Their journey to reach the “Special Zone” is interrupted by news that the Kowloon Children are on the move once more and that they are targeting the “Special Zone” despite the protective barrier that is supposed to keep the Kowloon Children at bay.  They can enter the zone if they’re invited, and when Katsuragi Mimiko, a compromiser for the Order Coffin Company, the humans in control of the “Special Zone”, inadvertently issues that invitation, all hell breaks loose …

Can the Red Bloods (humans) and Black Bloods (vampires) work together to put an end to the Kowloon Children?  And who is behind their resurgence?  Jirou , classified as an “Old Blood”—a descendant from one of the old clans of vampires—finds himself battling against the same forces that cost him the woman he loved ten years ago, and this time, the stakes are much, much higher …