1girl, arms_behind_back, blue_bra, blue_eyes, blue_panties, blush, bra, breasts, brown_hair, cleavage, fubuki_(kancolle), half-closed_eyes, kantai_collection, looking_at_viewer, low_ponytail, medium_breasts, panties, parted_lips, ponytail, sakieko, simple_background, solo, standing, underwear, underwear_only