Pianoga itneun gyeoul (Pianoga itneun gyeoul) (1995)

Hye-jin is an opinionated young woman majoring in film and theater who is now taking a semester off from school. She meets Jin-woo, an English literature instructor. She falls hard for him and begins to pursue him in her usual brusque and aggressive manner. But Hye-jin soon realizes that Jin-woo is in love with her half-sister Ji-ae.