Eighteen-year-old Myla Lewis is a girl who loves two things: kicking ass and kicking ass. She's not your everyday quasi-demon, half-demon, and half-human, girl. For the past five years, Myla has lived for the days she gets to fight in Purgatory's arena. When souls want a trial by combat for their right to enter heaven or hell, they go up against her, and she has not lost a battle yet.

But as she starts her senior year at Purgatory High, the arena fights are not enough to keep her spirits up anymore. When the demons start to act weird, even for demons, and the King of the Demons, Armageddon, shows up at Myla's school, she knows that things are changing and it is not looking good for the quasi-demons. Myla starts to question everything, and does not like the answers she finds. What happened 17 years ago that turned the quasi-demons into slave labor? Why was her mom always so sad? And why won't anyone tell her who her father is?

Things heat up when Myla meets Lincoln, the High Prince of the Thrax, a super sexy half-human and half-angel demon hunter. But what does a quasi-demon girl to do when she falls for a demon hunter? It's a good thing that Myla is not afraid of breaking a few rules. With a love worth fighting for, Myla is going to shake up Purgatory.