Mermaid Princess

Na-young (played by Jeon Do-yeon) in her 20s has a very stable life and work, but her relationship with her mother is not very good, and the two mothers and daughters cannot get close. But their father's sudden departure caused their family to lose its peace. She left her mother and went to the small island where her father once lived. On this beautiful island, she unexpectedly met a girl Yeon-soon who looked exactly like herself. Yeon-soon's happiness and Na-young's loss become a sharp contrast. After getting along, Na-young discovered Yeon-soon's true identity, which surprised her.