Kick no Oni
English name: Demon of the Kick
Genres: Sports
Type: TV, Episodes: 26
Aired: Oct 2, 1970 to Mar 26, 1971
Studio: Toei Animation
Source: Unknown
Synopsis:
An arrogant karate master named Tadashi Sawamura enters the kickboxing ring to prove his superiority, only to be beaten into a coma by a practictioner of the new art. After recovering, his trainer Endo convinced Sawamura to study kickboxing in order to regain his honor. The series is loosely based on the real-life exploits of champion kickboxer Tadashi Sawamura.

(Source: ANN)