Summer Scent (Yeoleum hyangki) (2003)

Three year's previously Min-woo lost his first love in a tragic accident. As he struggles on with life he meets Hae-won who reminds him of his lost love but is racked with emotion and confusion as his feelings for these two women become intertwined. Unbeknownst to the florist Hae-won she has received her heart transplant and a second chance at life from Min-woo's first love. When the two cross paths Hae-won notices her unusual heart beat. Nobody knew it was her heart that remembered and beats strong for her lost love Min-woo. As Hae-won starts falling in love with Min-woo soon the conflict erupts between the lovely florist and her fiance Jung-jae.