1girl, d, ass, breasts, brown_eyes, brown_hair, dated, girls_und_panzer, gradient_background, green_skirt, happy_birthday, long_sleeves, looking_at_viewer, looking_back, lying, medium_breasts, miniskirt, nishizumi_miho, on_stomach, ooarai_school_uniform, open_mouth, panties, pantyshot, pleated_skirt, sailor_collar, school_uniform, serafuku, shichimenchou, short_hair, skirt, smile, solo, thighs, underwear, uniform, white_panties, white_sailor_collar