omachi (slabco), kay (girls und panzer), coca-cola, girls und panzer, hashtag-only commentary, highres, 1girl, :t, aqua background, ass, blonde hair, blue eyes, breasts, cup, disposable cup, drinking straw, drinking straw in mouth, from behind, grey jacket, hair intakes, holding, holding cup, jacket, leaning forward, looking at viewer, looking back, miniskirt, pleated skirt, red skirt, school uniform, simple background, skirt, solo, thighhighs, white thighhighs, zettai ryouiki