saitou masatsugu, hatsune miku, 1925 (vocaloid), vocaloid, highres, 1girl, aqua eyes, aqua hair, black panties, boots, breasts, cleavage, female focus, hat, knee boots, large breasts, legs, long hair, lying, military, military uniform, necktie, on side, open clothes, open shirt, panties, peaked cap, sheath, sheathed, shirt, skirt, solo, twintails, unbuttoned, underwear, very long hair, weapon, window shadow