Asakura Saori is the princess of the Holy Xenitharian regime, younger daughter of a clan of warlords with a lust for conquest in a violent occupation. Those who oppose them or worship a different deity are quickly exterminated. While all of this looks normal to her, she meets Macaria, daughter of the last priest in town, boldly and recklessly preaching her faith, the events are being studied by Vitakrosis, a powerful spirit trying to prevent others to becoming like her.