When the Buckwheat Blooms(1967)

Original title: 메밀꽃 필 무렵

Heo, an itinerary market dealer, had a short and passionate love with a girl called Bun when he was young and still cherishes that memory in his heart. One day, he happens to meet a young market dealer who is left-handed like him. While talking to him, he finds out that the man is actually his son.