A chance encounter in a Seoul department store changed Myung Se-bin's life: singer Shin Seung-hun spotted her there in 1996 and cast her in one of his music videos, opening the way to modeling for magazines and commercials and then to acting. Born in 1975 and descended from the Seochok Myeong clan, she graduated from Dongduk Women's University before becoming one of Korean television's familiar le…