Director Osamu Dezaki started a revolution at Tokyo Movie in the 70s, according to this 1997 interview on The Adventures of Gamba.
Before the Golden Days: Of Mice and Osamu Dezaki
Tag: goku’s great adventures
The Other Half of the Golden Combo: Akio Sugino Interview – Mushi Production Era (Part 1/6)
"I barely got published in two [gekiga] magazine volumes. I have those volumes stored away. No one has seen them. (Osamu) Dezaki was under the impression that none of my submissions got picked up for publication, but I proudly informed him otherwise."
Heisei Etranger 