This is an anime where Nippon Kempo was integrated in the scenario during one episode. Unfortunately, the Nippon Kempo is not to his advantage.

This is the video where you can watch the nippon kempo

N.B: La traduction pour Nippon Kempo a été mal adapté. Ici, les auteurs le traduisent par Kempo japonais au lieu de laisser Nippon Kempo.