In the bustling city of Tokyo during the Edo period, the shogunate era faces turmoil as enemy forces plot to destabilize the ruling regime. To counter this threat, Shirou Sumiya, leader of the "Way of the Paper Drawing" faction, wields his brush with lightning speed, capturing the pandemonium of the battles on paper. When called to Edo, Sumiya recruits skilled followers gifted in the art of covert sketching to confront colossal creatures that have leapt off the page and into reality.