Twenty years ago, a vicious sea witch ripped the Sacred Tide Sigil from noble heiress Ophelia, transplanting it into a maid's daughter and leaving Ophelia powerless. Five years ago, during a cosmic tide, Sebastian—the ferocious, ascetic Alpha tyrant of the Deep Sea Empire—lost control of his divine powers. Drawn by an irresistible fated mate bond, Ophelia was swept into his altar, sharing a wild, feverish night that resulted in her secretly raising their half-merman son, Orion, on land.
Now, with Orion dying from a bloodline backlash, Ophelia signs a humiliating slave contract to infiltrate the deep-sea palace as a lowly maid. However, Tyrant Sebastian quickly discovers that this human maid's unique scent is the only antidote to his violent rage, igniting his obsessive, tyrannical, and absolute protection over her.
