The Gate of Youth (1981)

The story of Shinsuke, a young man who lives through a stormy life as a poverty-stricken coal miner. Ranging from Shinsuke's infanthood to his mid-teens. Coal workers and the mines dominate nearly every aspect of his life. Shinsuke's father a group leader at the mine, dies while bravely using dynamite to rescue a group of trapped Korean miners. Several older men attempt to help he and his mother cope, including a friendly Harley-riding yakuza boss. This movie has it all, drama, romance, sex, yakuza and violence! It is based on a story by Hiroyuki Itsuki that was originally serialized in the magazine Shukan Gendai in 1969-70.