Having made tremendous advances, breaking through everything in their path since their Hunter debut, the Crimson Vow is now being treated as the next generation of ace Hunters by the Guild. They take on a difficult quest that other Hunters shy away from, but, lurking in the shadows of the quest, beastpeople are on the move. And it seems even that is not all there is to this quest... The Crimson Vow faces its most dire threat ever. The greatest of enemies appears before Mile!