In the manga, it’s implied that Wakatsuki easily defeated real world martial artists George St-Piette, Rickson Gracie and Mas Oyama
The Kure Family is based on the Gracies, The family that created Brazilian Jiu-Jitsu. Raian is based directly on Ryan Gracie
Kazuo Yamashita’s motto is, “Good can come out fo misfortune”
Julius Reinhold is based on real-life strongman-turned-mixed martial artist Mariusz Pudzianowski
Gaolang enjoys going to karaoke but he only sings the Thai national anthem
Gaolang’s design is based on the original Broly’s base form design
Agito’s original martial art was going to be Pankration
