After that, all the members attacked the Kumamoto Chindai Army (in Kumamoto Castle) of the government forces, killed soldiers in the castle one after another, and gained control of the artillery barracks.
その後、全員で政府軍の熊本鎮台（熊本城内）を襲撃し、城内にいた兵士らを次々と殺害し、砲兵営を制圧した。