Having left Earo behind, Gaide decides to free her Shadows from the humiliating curse. For that, she goes into the deep forests of the Plain and begins training with her blood brothers. And along with her, a demon starts learning too—one that, as it turns out, still has plenty to surprise its unusual mistress with. When the time comes and it’s time to test their new skills, they run into yet another serious problem; however, to solve it, it turns out, something much more is needed than just the ability to hold a sword.