Ah, Wilderness 1

The year is 2021, and years of mismanagement have left Japan a broken society riddled with poverty and underemployment. Kenji is visibly disabled and has an inferiority complex. Shinji is released from prison and has time on his hands. They both coincidentally signed up at a club for boxing and soon became friends.
(Source: IMDb)
~~ Adapted from the novel "Aa, Koya" by Terayama Shuji.