1girl, black_hair, blue_eyes, blush, breasts, cleavage, fundoshi, girls_und_panzer, hair_ribbon, hiyama_yuu_(wee259hiyama), isuzu_hana, japanese_clothes, large_breasts, long_hair, navel, no_bra, open_mouth, outdoors, ponytail, ribbon, signature, solo, sweat, wet, wet_clothes, yamakasa