In 1689 the famous poet Matsuo Bash? undertakes a pilgrimage to the province of Sendai to write what will end up being his most famous work, Sendas de Oku. What no one knows is that Bash? He is actually a melancholic ninja with a painful debt to pay off his past, and that around that trip revolves one of the largest political conspiracies in Japan, whose implications between vindictive clans and perverse members of the Tokugawa government will shake the peace that with So much sacrifice and blood had been hard to come by. The ruler of the sh? Gun wants to subdue Japan. All his conspiracies lead to the same place. The only one who knows is a ninja-turned-poet. Only his exceptional journey can restore peace.