The Hidden Mermaid Princess

A mermaid princess hides as a mortal wife, secretly protecting her tycoon husband's family—until he and his mother humiliate her for his first love. When the contract ends, the seal shatters, awakening her deep-sea power. The truth is exposed, the family falls, and though the ruined tycoon searches the world for her, the scarred princess returns to the sea, leaving him to eternal regret.