Kayla is manipulated by base boss Kane to hunt royal mermaid Lir, believing the mermaid clan murdered her father. She tortures pregnant Lir cruelly, cutting her tail and tearing scales in public. But a sacred blood pact links their lives, and Kayla secretly tends Lir’s wounds out of hidden guilt. After discovering Kane forged all evidence and killed her father herself, Kayla defects. She unites Lir, her two mermaid twin daughters, Lir’s mother and the remorseful young Damian to overthrow the cold-blooded tycoon. Full of heart-wrenching pain, family warmth and underwater fantasy, the story follows the pair’s redemption, from bitter enemies bound by blood to loyal lovers raising their big family by the sea.
