Eomma gyeolhonshik (1982)

Things backfire for young Cheol-hie when she convinces her father to go on a blind date with her kidnergarten teacher. It turns out that her teacher is actually Cheol-hie's birth mother. While at first, Cheol-hie is excited at the possibility of her parents getting back together, it turns out that her mother/teacher has different wedding plans coming up in the near future