Aria, a fresh-faced Exorcist Nun, is on a holy mission to wipe out the Succubus Plague, a terrifying affliction that transforms people into monstrous beings. Gifted with divine stigmata, she wields sacred powers to cure those infected. Her healing method, though involving deeply intimate and pleasurable acts, is seen as a holy and essential sacrifice to save humanity. With unwavering resolve, Aria sets out on her epic journey to the great temple, ready to fulfill her crucial mission.