Zone-00

In a world where humans and demons coexist under a fragile peace, change is coming...A mysterious drug, known only as ""Zone-00,"" seems to be causing demons all over Tokyo to lose control and revert to their old, violent ways. Enter two young students who stand on opposite sides of an ageless conflict. One a demon, the other an exorcist, they must now join forces to uncover the secret of ""Zone-00"" before it's too late!
From the artist of Trinity Blood comes a dark, suspensful tale in which two centuries-old enemies fight together to save humanity!

A battle 500 years in the making rages on as the effects of the mysterious drug Zone-00 takes hold of Tokyo's demon population. Now it's up to Shima and Kujo to take matters into their own hands to restore order before it's too late. Are they strong enough to prevail or will they need to enlist help from other creature kind as they close in on the mastermind behind the mysterious drug? 
From the artist of Trinity Blood comes a dark, suspensful tale in which two centuries-old enemies fight together to save humanity!

More battles rage over the mysterious drug Zone-00 as Kurobara and the Creaturekind leadership are hot on the trail of whoever is responsible. What does Benten and his two brothers, Bishamon and Bento, have to do with all this? Shocking secrets of Benton's dysfunctional family give new insight, while Shima and Kujo continue to fight to uncover the truth. Will it all be enough against the powerful effects of the drug Zone-00?

The battle over Zone-00 begins as Benten confronts his older brother Bishamon, the creator of the nightmare-inducing drug. With every creature, creation and witch on edge, who will emerge victorious and who will be forever changed by this war? Most importantly, what cruel fates will befall Ango Shima, the young master of the demon-slayers, and Saburo Kujo, the incarnation of the infamous red ogre, Kiyoami?