When the Deep-Sea Siren Queen Thalassa is accidentally captured by Dominic Blackwood, New York's ruthless underworld king, she is forced to sign a contract to pose as his maid in exchange for survival on land. What begins as mutual suspicion and exploitation slowly deepens into an obsessive, cross-species bond. As they battle jealous rivals, power-hungry relatives, and black-market hunters obsessed with her immortal blood, Thalassa and Dominic uncover the dark truth behind humanity's greed for eternal life. When Dominic takes a fatal blow meant for her, Thalassa rips out her own Siren Core to save him. In return, he sacrifices his heart to bind their fates forever. Their love defies death, species, and time itself.
