Hachizou Onizuka

He is a rookie class police instructor at the Metropolitan Police Academy and an old friend of [Sato](https://anilist.co/character/13975/Miwako-Satou)'s father. He has trouble dealing with problem students in his own classroom. He had instructed [Kogorou](https://anilist.co/character/1746/Kogorou-Mouri), [Furuya](https://anilist.co/character/62041/Tooru-Amuro), [Date](https://anilist.co/character/128417/Wataru-Date), [Matsuda](https://anilist.co/character/30364/Jinpei-Matsuda), [Hagiwara](https://anilist.co/character/177926/Kenji-Hagiwara) and [Hiromitsu](https://anilist.co/character/128447/Hiromitsu-Morofushi)