The year is 2087, and the sacred wall keeping the kingdoms of Eden and Samael divided is on the verge of collapsing. In Eden's capital city, Celine, the Reva family is under constant surveillance by the government for their supposed involvement in a conspiracy that is rapidly spreading to locals. As a last resort, the parents of the family set their house on fire to escape from the chaos.
Meet Astrid, the only survivor of her parent's suicide attempt. Now having to start from zero, Astrid finds herself losing all hope. That is until she meets fellow orphan Vernon Carter. The two instantly connect and become best friends. For years, they are unstoppable. Always working harder than everyone else in the jobs they can find listed on the streets. However, when they both turn 17, everything changes. Astrid becomes convinced Vernon and her need to find higher-paying jobs to buy a house by the time they are 18 or 19. So, one day while searching for a job, she stumbles across a flyer from the royal palace looking for a full-time maid. She accepts.
For the first week, Astrid has constant uncertainty on whether she picked the right job. This all changes until she meets the future heir to the throne of Eden, Frederick Sierra. He is everything Astrid has ever dreamed of; there is only one issue, Dawn Elmore. Frederick's new wife as a result of an arranged marriage.
Time soon passes, and Frederick and Astrid's relationship grows into something more than a friendship. As their relationship strengthens, Astrid receives some shocking news that can alter the fate of Eden.
Can Astrid keep everything she has established, or will she have to start from zero once more?
In the epic conclusion to the Devil's Deal series, Freya has one final chance to discover the full potential of her own power, and to use it to restore balance in the universe - once and for all. After the destruction caused by Roisin, Ferya and Torix come to terms with their losses and mistakes... And prepare for a final battle that will change everything.