The world is overrun with monsters called Nemeses--and a young boy infected by one will stop at nothing to defeat them all! Evil creatures called Nemeses fall from the skies and the only ones who can fight them are Wizards--infected ones who survived a Nemesis's corruption. Seth, one of these survivors, vows not only to fight the Nemeses, but to find their mythical nest, Radiant, and destroy it! Ocoho, with the support of Lupa and Diabal, finds a way to infiltrate the Domitors to rescue Mélie. What she doesn't know is that Mélie is no longer a prisoner. Meanwhile, Seth manages to escape from the prison tower, but runs across Grimm and Dragunov in the process.