Megan is a typical university student trying to figure out her place in the world, except instead of hoping to pass the bar or get into med school, she's studying to become a licensed vengeance demon. Nineteen-year-old Megan Aequitas is the only vengeance demon and trickster hybrid ever born. In a world where vengeance demons are respectable, rule-obsessed guardians of the Cosmic Balance, and tricksters are playful, happy-go-lucky perpetrators of chaos, being half and half is, well, tricky. Determined to prove herself worthy of her vengeance blood, Megan enrolls in University of Demonic Studies' prestigious co-op program. Wreaking karmic revenge on wrongdoers from cheaters to crooks sounds fun and simple, if it weren't for the unsuspecting human roommate, Megan's flamboyant trickster half-brothers, a changeling-raised fellow outcast, and a trio of evil wannabes. Then one assignment turns deadly when Megan discovers a plot to unleash an ancient force so authoritarian, most creatures would be deemed too unworthy to exist. After a lifetime of being embarrassed by her trickster tendencies and striving to fit in vengeance society, Megan now has to learn to embrace both of her worlds if she wants to save them.