Mermaid Princess and the billionaire heir

Twenty years after a maid swaps two newborns, Leo grows up as a servant while Adrian enjoys life as the Blackwood heir. When mermaid princess Coralie emerges from an antique painting, she joins Leo to uncover the truth and hunt her fugitive sister, Morgana. As blood records, hidden witnesses, DNA evidence, and a stolen Tide Stone expose the conspiracy, Leo must reclaim his name, save his real mother, and fight for a love that bridges land and sea. Their final battle will decide the fate of two worlds.