I can find very little English language information on this show, beyond that it had a sequel/remake.
And that the Osamu Kobayashi who directed it is clearly not the Osamu Kobayashi who directed Beck and Paradise Kiss, despite what some sites may claim.
Thankfully the always wonderful and informative AniPages Daily comes correct with the almighty truth saying. In fact, I command you to check out that site’s article on the A Pro studio style and productions (of which Dokonjo Gaeru was one), it’s full on nutrition for the brain.