The sequel to Sanshirō

Murai, the jujutsu master who was seriously injured by himself due to a martial arts competition, passed away. Zisanshiro (played by Susumu Fujita) felt guilty and could not face his lover, so he walked away from home. When he set foot on his homeland again, he encountered American soldiers bullying weak civilians. He stood up with justice and repelled the arrogant Americans. After that, he discovered that many people were using kung fu to make a living instead of promoting the true meaning of martial arts. At the boxing match, he was shocked to see a martial arts master who wanted to compete with an American boxer just to support his livelihood with appearance fees. Zisanshiro was struggling internally, and he felt that it was necessary to do something to reshape the spirit of martial arts. He broke three precepts: drinking, fighting, and performing in public venues, just to break some stereotypes and establish a new meaning for judo. At this time, two karate boxers came to challenge. Their father was seriously injured due to the martial arts competition with Zisanshiro, so they practiced hard and swore revenge. A fight between dragons and tigers was imminent...