1girl, 3boys, aki_(pixiv_87336387), arm_up, ascot, belt, bill_willcox, bismarck_(mecha), blonde_hair, blue_shirt, bodysuit, boots, breasts, brown_footwear, cleavage, cowboy_hat, denim, gun, hairband, hat, high_heels, hikari_shinji, holding, holding_gun, holding_weapon, holster, jeans, long_sleeves, marianne_louvre, mecha, medium_breasts, multiple_boys, pants, red_ascot, red_background, red_bodysuit, red_footwear, red_hairband, red_shirt, revolver, richard_lancelot, robot, sei_juushi_bismarck, shirt, short_sleeves, squatting, super_robot, weapon