The narrative unfolds during the turbulent years of the shogunate, as dark forces attempt to undermine the shogun's authority in Edo-era Tokyo. Shirou Sumiya leads the "Way of the Paper Drawing" clan, which captures the chaos of these struggles through rapid brush strokes. Sumiya is summoned to Edo, and his disciples, who possess extraordinary powers in their secret drawing techniques, become part of the ensuing battles involving giant drawn creatures.