Aza has never been one to let herself feel powerless, but when she's tossed into purgatory after her mysterious death, she can't help but feel that way. In purgatory, the souls of human beings have transformed into savage hounds vying desperately for power and influence. The only way to achieve reincarnation is to build a resurrected body, a Meridian. One powerful stranger may hold the key to figuring everything out. The only problem is that he's trying to complete his Meridian, too...