When Boss Juzo's Shinmachi Yakuza family struck fear into the hearts of his adversaries, Boss Shohei's Okabe Yakuza family with a merciless gang of raiders, Itaro of Asama was missing. With the courage of a lion he had gone off to face the enemy and settle the score all by himself. As a result he had to take the blame in place of Boss Shohei, and went off to adventures on his own.