STORY: "Underground gladiator Tokita Ohma fights on behalf of business mogul Nogi Hideki who wagers mega-business deals on the outcome of these brutal matches." (Above image via kengan.net)
"Kengan Ashura" streams exclusively on Netflix, July 2019.
WHAT-IS: "Kengan Ashura (Japanese: ケンガンアシュラ) is a Japanese manga series written by Yabako Sandrovich and illustrated by Daromeon." (Wiki)