Teenage country bumpkin Tatsumi dreams of earning enough money for his impoverished village by working in the Capital--but his short-lived plans go awry when he´s robbed by a buxom beauty upon arrival! Penniless, Tatsumi is taken in by the lovely Miss Aria, but just when his Capital dreams seem in reach yet again, Miss Aria´s mansion is besieged by Night Raid--a team of ruthless assassins who targets high-ranking members of the upper class! As Tatsumi is quick to learn, appearances can be deceiving in the Capital, and this team of assassins just might be...the good guys?!