An innocuous comment during a weapon inspection wounds the pride of low-ranking samurai Shinpachi, leading to an argument with his superior. The situation snowballs out of control, leading to a deadly duel and political fallout which threatens the entire clan. Declared mentally unstable by the corrupt authority, Shinpachi begins his descent into true insanity…

One of Japan's most enduring stories is the true-life yakuza boss Jirocho of Shimizu and his gang as they took over the Tokaido Highroad and went on to everlasting fame. Many of the gang members have become household names although their backgrounds and how they came to join the group are mostly lost in the mists of a time gone by. This is the tale of Masa, who arrived in Shimizu Port hungry and down on his luck. His adventures contain some light-hearted moments as he meets up with the other gang members and goes on to join the group and become one of their best swordsmen. A truly exciting tale starring the ever-popular Okawa Hashizo along with all-time great Okochi Denjiro.