A young, aspiring villainess and novice mage named Luna embarks on a quest to avenge the death of her mother at the hand of a group of heroes. Accompanying her are a pair of succubus sisters named Lilith and Elora, her mother’s old familiars. The three journey together, learning more about each other and getting into trouble, mostly incited by her disobedient familiars, on their long journey for vengeance