Colt M1851 Zangetsu

A black iron pistol rests in his pocket; a pitch-black soul dwells within his heart. The year is 1853 in Edo. Known by the nickname Zangetsu, Rouji serves as a young head clerk at the Mitakaya wholesale shipping agency. Though a promising future lies before him, behind his genial demeanor lurks a key operative of the Yoshihira faction—a coalition of rice brokers that holds sway over Edo's criminal underworld. Determined to climb the organization's hierarchy, he wields the Colt M1851 Navy, the most cutting-edge revolver of its era. Backed by his deftness with firearms and an unflinching nerve, Rouji endeavors to carve his path upward through the shadowy streets of Edo.