![](https://image.tmdb.org/t/p/original/6N9aBTzwolZuHTYzpQjmEM810ke.jpg)
Mr. Kinpachi in Class 3B
Season 6: Kinpachi Sensei 2002
Episode 4: Yoki Father and Yoki Teacher
Nov 01, 2001
Kosaku becomes more emotionally unstable when he learns the truth about his illness. Losing his hair due to chemotherapy aggravates his emotional state. Kinpachi does his best to encourage his son, at times with strong words, at times with tender actions.