An account of karate competitor Choi Yeung-Eui who went to Japan after World War II to become a fighter pilot but found a very different path instead. He changed his name to Masutatsu Oyama and went across the country, defeating martial artists one after another. This film concentrates on the period when he is still young, and developing his famous karate style, Kyokushin.
| Actor | Role |
|---|---|
 Yang Dong-geunChoi Bae-dal | Choi Bae-dal |
 Aya HirayamaYoko | Yoko |
 Masaya KatōKato | Kato |
 Jung Doo-hongBeom-soo | Beom-soo |
 Sachiko KokubuNot listed | Not listed |
| FFuuma KosakaNot listed | Not listed |
 Jeong Tae-wooChun-bae | Chun-bae |
 Yeom Hye-ranAunt | Aunt |
| KKim Min-sooPort Yakuza | Port Yakuza |
| SSeong-hwan KooCircus Clown | Circus Clown |
| LLee Han-galMiwa | Miwa |
 Lee Han-solNot listed | Not listed |
 Hisao MakiMartial Arts Association Elder | Martial Arts Association Elder |
| SSeong-min ParkRyoma | Ryoma |
| BBaek Dong-hyunBoxing Match Opponent | Boxing Match Opponent |