sakamoto mio, strike witches, world witches series, non-web source, 00s, 1girl, armor, armored boots, belt, black hair, boots, buttons, eyepatch, female focus, holding, holding behind back, holding sword, holding sword behind back, holding weapon, holding weapon behind back, leotard, long hair, long sleeves, military, military uniform, oekaki, panties, ponytail, sheath, sheathed, simple background, sketch, solo, striker unit, swimsuit, swimsuit under clothes, sword, thigh boots, thighhighs, underwear, unsheathing, weapon, white background