A kid born into a war he didn't start learns that survival isn't the same as living. Sasuke watches his father bleed for a loyalty that got him nothing, inherits his skill instead of his peace, and has to decide whether to become the weapon everyone expects or the person his father tried to protect him from becoming. This is 1968, there's no redemption arc, no power-of-friendship solution, just a boy learning that vengeance costs more than the people chasing him ever will.

A young ninja named Sasuke finds himself stripped of everything when his father Ozaru's lord, Yukimura Sanada, is defeated. With the Tokugawa and Hattori ninja hunting down every surviving enemy, father and son leave their home and become fugitives in a world that offers no mercy. Along the way they fight a string of foes, including Hattori Hanzo, the Kuki Clan and the Iga Clan. As Sasuke grows, he struggles with the pull of his own compassion even though a ninja is expected to be cruel. The result is a harsh period action story built on danger, loyalty, vengeance and pain, where survival is never guaranteed.