
Cora, the last mermaid on earth, falls for human Kellan, only to discover his infidelity and leave penniless. She applies for a step‑mother position at billionaire Lucian Kane’s estate and heals little Theo’s anorexia with her mermaid power. They enter a contract marriage and gradually develop real affection. Cora later learns Lucian was the one who once rescued her at sea. Her ex‑husband Kellan keeps pestering her and ends up ruined. Finally, Cora gets pregnant and builds a warm family with Luc