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!

Mile has been utterly defeated by the strongest creature in the world -- the elder dragon. The average abilities she wished for when she was reborn failed against the elder dragon, crushing her spirit and breaking her heart. Who speaks to Mile in her moment of despair? What will become of Reina and the others who stand in the face of the elder dragon because they believe in Mile? Will Mile ever attain normal happiness? This is the end. Blaze away, Crimson Vow!