mochizuki riku, original, commentary request, highres, 1girl, aiming, black skirt, black thighhighs, closed mouth, gun, half-closed eye, holding, holding gun, holding weapon, holster, hood, hood up, long sleeves, looking at viewer, miniskirt, neckerchief, red neckerchief, rifle, school uniform, serafuku, shirt, skirt, sleeves past wrists, solo, tactical school uniform, thigh holster, thighhighs, weapon, white shirt