No Looking Back: I Remarried Your Rival Brother

After her fiancé Adrian betrays her with her stepsister, mermaid noblewoman Selena is framed, imprisoned, and cast out. She escapes and marries his powerful uncle, Marcus. With his support, she rebuilds her fortune, exposes the royal family’s lies, and rises from discarded bride to Queen of the Seven Seas—leaving Adrian to regret losing her.