1girl, alice_gear_aegis, black_background, bodysuit, breasts, choker, flying, gloves, greyscale, gun, head_tilt, holding, holding_gun, holding_weapon, ishiyumi, looking_down, mecha_musume, medium_breasts, monochrome, open_hand, parted_bangs, ponytail, solo, takanashi_rei, v-shaped_eyebrows, weapon