Unabara Domain—home to nightmarishly strong students and masters of martial arts of all kinds. The lord of the Unabara has decided that whichever of his sons discovers the strongest martial arts style will be his heir, but when 28th son Naoyoshi Washizu decides on Ogama-style practitioner Gama Kurogane, son of notorious father and scion of a “weak” style, to represent him, the odds seem bleak. But between Naoyoshi’s determination and Gama’s hard-earned strength, they may yet come out on top!
After calling a one-year truce with the Muho style, the Ogame style has spent day after day in training. However, just as the one year truce period nears its end, the Muho style launches a surprise attack. Now is the time for Gama and the others to show off the results of their training at Mt. Juren! Then Jinsuke, the head of the Muho style, puts the Ogame style in a bind with a surprise appearance, saying: “I'll kill you right here and now if you’ve turned out to be a worthless swordsman, Gama.”