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!
The Unabara Domain, the "Den of Demons" where martial artists gather. The battle in which 31 styles compete to be named strongest in the land, The "Grand Tournament of Unabara," has begun!! The first round is a clash between four styles. Gama Kurogane, fighting solo for the Ogame Style, must next face off against the Nakaizumi style's "Mad Bow"!! Having been deeply wounded in his first match, just how will Gama's sword fare against this bow?!