Purity Wellspring is a female human who specializes in slaying undead creatures, especially ghouls and other evil beings. She is the sole survivor of a plague that once swept the world and turned many of its inhabitants into vicious monsters. It is said that there are many more out there, waiting for their chance to attack and kill.

While Purity has shown to be a formidable warrior and slayer, she is not the only one in the world who fights against evil. Her struggle for survival and the glory that comes with it has attracted many followers who continue to support her and follow her example.