What is the sword? This is the question that drives ketsuko, as she carves her way through the world.
Both a master of the sword and a slave to it, Aragami Ketsuko cannot resist the tide of violence that would destroy her clan. Taking up her fallen father's 'Red Devil' mask, Ketsuko fights to save her people, no matter the bloody cost.
16th century Japan. The fates of warlords ebb and flow like tides of blood, none more than the Aragami Clan who follow their lord clad in the ‘Red Devil’ mask into every battle. But when Lord Aragami succumbs to illness, his daughter, the fierce Ketsuko, hatches a plot to save her people, no matter the cost…
Grim Ketsuko and bumbling Fubei have agreed to lead the arrogant ronin through the woods and over the mountain. But death walks freely in the night, as the dishonored samurai are stalked by shadows of the Black Tongue ninja--and a devil who walks among them.