Mizushima Umon holding a gun

Yoshitoshi pictures Mizushima Umon armed not with the conventional sword but with a firearm — a detail that places the subject within the unsettled military world of the Bakumatsu, when matchlock and percussion-cap weapons increasingly displaced the bow and katana as instruments of samurai violence. The composition likely centers the gun as both pictorial and narrative anchor, the long barrel cutting a strong diagonal across the sheet while the figure adopts the alert, half-crouched stance of a marksman. Yoshitoshi treated such modernizing details with characteristic precision: armor and cloth rendered through dense key-block linework, metallic surfaces picked out in restrained gradation. This print belongs to the artist's broader effort during the late 1860s and 1870s to reckon with the violent transition from the late Edo to the Meiji period — a body of work that included graphic battle scenes from the Boshin War, the Saigō Rebellion, and the Restoration's many internal conflicts. Yoshitoshi's willingness to absorb new weaponry and contemporary military dress into the language of the warrior print was characteristic of his late [musha-e](/glossary/musha-e).