Just uploaded My Review Of The 1st Story Arc In The 1987 Seinen Dystopian Post Apocalyptic Martial Arts Action Manga Series Riki-Oh Created By Masahiko Takajo And Tetsuya Saruwatari. The Prison Arc On YouTube. Here's the link to check it out.
https://youtu.be/yni-DQD_Wys?si=6Zczjq6z8GZYFZBJ