My Mother the Mermaid (2004)

Plot

Na-young, a post office employee, is fed up with her domineering mother and overly compliant father. With an upcoming trip abroad on her mind, her plans take an unexpected turn when her father mysteriously disappears. Her indifferent mother shows little concern, leaving Na-young no choice but to forgo her vacation and embark on a quest to find him. Upon arriving in her parents' hometown, she encounters a surprising figure that challenges her perceptions and dreams, setting her on a transformative journey of self-discovery and familial ties.