[Machine Translation] This how-to DVD introduces the training methods of Oikawa Dojo, led by Tomohiro Oikawa, the Japanese Super Featherweight Champion in Chute Boxing, and reveals the secrets of the strength of Oikawa Dojo, which has many active champions such as RENA, who won the Girls S-cup for two consecutive years, and Tatsuya Ando, the WMF World Lightweight Champion.