Sorrow Even Up in Heaven(1965)

Original title: 저 하늘에도 슬픔이

Lee, Yun-bok in his fourth grade lives in a poor family. His father is indulged in gambling, and his mother, who can no longer tolerate the cruelty of her husband, leaves home. Yet, Yun-bok comforts his younger brothers, makes a poor living by shining shoes, and keeps his journal everyday.