Nineteen-year-old Ava Stone has long cared for her ailing mother Claire and endured the violence of her father Derek. After Derek named her as collateral for a debt, Callum, Ethan, Rafael and Soren of the Voss family brought her to their estate. A copper coin, two overlapping old debts, and the relentless pursuit of Leo Decker closing in on her made Ava realize she had been treated as a bargaining chip by her father since childhood. Refusing to let anyone decide her fate for her any longer, she actively fought for the right to know the truth, to receive training, and to take action, and in the midst of repeated conflicts, she came to see the vastly different ways the four men protected her, as well as their hidden wounds. Eventually, the five of them joined forces to take down Leo and tore up all the agreements that had taken Ava as their subject. After gaining true freedom, Ava did not stay behind to pay off debts, nor was she forced to choose one of the four men; she left the estate of her own will, then returned voluntarily, turning what had once been a prison into a home she had chosen for herself.
