The Nemeses are mysterious and formidable demons that descend from the sky, dissolving anything they come into contact with. Only the rare sorcerers who have survived an encounter with these creatures are capable of battling them, although they are left with a strange otherworldly essence. Seth, a sorcerer hailing from Pompo Hills, sets out on a mission to eliminate all Nemeses alongside his like-minded companions, Doc and Mélie. They strive towards creating a world where sorcerers are no longer ostracized due to their infections from the Nemeses. To accomplish this, their ultimate goal is to defeat the mystical Radiant, the source of existence for the Nemeses.