I can NOT even believe this was not ever posted, and yet. At the same time can from the times I spent read their work. -_-
In any case. This is Rascals: Goyoku (or Goyoku for short). What is it about. It centers on Skye in his early years on a journey to perfect his skills as a mixed martial artists and meeting Reiko for the first time.
Essentially, a long defunct prequel comic of Rascals focusing on Skye, Reiko, Jazmin (Reiko’s younger sister), and others attending their ninja school and other wacky shenanigans occur.
Enjoy.... Or don't. You enjoyment may vary. ^^;

Links:
https://www.furaffinity.net/user/mastergodai
https://www.deviantart.com/mastergodai
https://twitter.com/mastergodai
https://www.patreon.com/Mastergodai