The Mermaid Princess) is a 2004 South Korean film about a young woman who quarrels with her mother but is somehow transported back in time and sees her parents' courtship.

[1][2][3] Na-young (Jeon Do-yeon) is an office worker who lives with her seemingly emotionally non-existent father Jin-kook (Kim Bong-geun), and loud cynical mother Yeon-soon (Go Doo-shim).

She meets her mother, now a poor young woman (Jeon Do-yeon) working hard as a haenyo to send her younger brother to school to get the education she never received.

Her father is a charming man (Park Hae-il) who works as a postmaster who delivers mail all over the town where her mother lived.

Na-young is able to experience the trials, heartbreaks, and celebrations of Yeon-soon before she herself is suddenly transported back into the present time.