The time pasts from Late Tokugawa Shogunate, the men, only live to fight, lost their place to live.
Profession they end up is assassin in darkness.
They don't kill to live, they live to kill.
Who survive? A man who throw his Kanata, who pass his own way of life, or who fall into darkness.
Inside of all men, the wolf live. Women only watch attentively them.
It starts the last fight to survive.