Life is tough during the Warring States period of medieval Japan: lords battle lords for control of the country, while samurai and mystical warriors do their bidding from the shadows. Backstabbing and betrayal are common, and legendary ninja Saizou Kirigakure has had enough. He lives only for himself – until a girl with a mysterious dark power falls into his arms. Saizou quickly finds himself dragged into a struggle between powerful warlord Ieyasu Tokugawa, and the strange but alluring Yukimura Sanada. He becomes one of “Sanada’s Ten Braves,” who use their mystical powers and ninja abilities to protect the people and things they care about the most.