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!

After finally meeting his long-lost brothers, Seth is faced with a difficult personal dilemma—choosing his brothers’ side or letting Piodon live. Meanwhile, Doc finds out what it means to be a Droplet, and how tough life actually is down in the slums of Bôme.