1girl, ass, black_hair, black_one-piece_swimsuit, blue_eyes, blush, breasts, bukkuri, dated, girls_und_panzer, grey_background, large_breasts, long_hair, looking_at_viewer, nonna_(girls_und_panzer), one-piece_swimsuit, open_mouth, shiny_skin, sideboob, simple_background, sitting, solo, swimsuit