Ancient Japanese Ronin warriors set 300 years after 47 Ronin, in a modern-day world where Samurai clans exist in complete secrecy.
Amidst the Boshin War's brutal conflicts, a motley squad of criminals and samurai undertakes a desperate defense of a fortress, their stand triggered by clashing interests of the Shibata clan, the shogunate, and the new government.
Kakunoshin Yanagida was a samurai, forced to leave the Han due to a false accusation. He then lived in poverty with his daughter Kinu.