After being blinded, murdered, and stripped of everything by her own sister, Ella fell into the Underworld consumed by hatred. By chance, she entered into a contract marriage with Azrael, the ruthless Lord of the Seventh Hell. A dark sovereign who had struck terror into all three realms for three thousand years and never felt love, he lavished all his tenderness on her alone—healing her wounds, defying the heavens to grant her temporary sight, standing up to his own kin and defying the Underworld Council, giving her all his favor and protection. Yet when her sister learned she was still alive, she secretly colluded with the exiled Hell Princess, returned for revenge, and vowed to destroy her once and for all…