Shinobi no Kuni

Warlord Nobunaga Oda is rapidly vanquishing his foes on a quest to unify Japan under his rule, but there is one region that even Nobunaga fears: The Iga Province, home to the Iga ninja. Mumon is Iga's strongest ninja, renowned as a deadly assassin with unmatched battle strength, but he is equally lazy and only seeks to please his wife, Okuni. At the same time, a ninja named Heibee Shimoyama has become disillusioned with his people's way of living. One day, Mumon kills a ninja from a different family, unaware that his actions will ultimately lead to a deadly battle between Nobunaga's army and the ninja of the Iga Province.