A 300-year-old book is found that chronicles the adventures of the legendary Samurai Troopers… centuries before they occur! But what does this signify? Are the Troopers simply puppets in some cosmic drama, playing out their roles? Who is this enigmatic Suzunagi, a mysterious girl who tempts each of the warriors with their heart’s desire—salvation, new armors, freedom from a life of combat. Why is she so interested in the troopers and their armors?