In 1560 A.D - Japan’s last Shogunate lost full control over the realm causing an eventual explosion into a massive civil war with other provinces of the once mighty empire. Anarchy reigned through the country as the different clans waged an all-out bloody war for supremacy. One clan "Steel Claw" in particular led by their Daimyo (Military Leader) Mamoru Imai, began seeking the knowledge of old forbidden practices and worshiping dark entities in order to try and place a curse upon his enemies. Mamoru was soon to be infected by the spirit of a vindictive and very malevolent Samurai warlord. Through this infection, "Steel Claw" began a campaign of total chaos and hatred spreading vile darkness through the lands, infecting other nations along with it. The demonically possessed Daimyo allies himself with nine other powerful demons and forges a massive army born from hatred and fueled by blood. No one army can withstand him. All hope is on the detachment of the shinobi clan "Black Lotus", operations of sabotage only can weaken the power of Mamoru. The warlord must be assassinated or Japan will crumble into dust.