Shinobi: Runaway (2005)

Kagerou and Aoi have become fugitives. Not only are they being pursued by the Shinobi of Shiroyama, they must also escape assassins hailing from all the families of Iga. With a conspiracy brewing and surrounded by betrayal, Kagerou and Aoi are left to search for the sincerity of their allegiances as well as asylum from their hunters.