1girl, ass, back, barefoot, black_bra, black_nails, black_panties, blush, bra, brown_hair, closed_eyes, closed_mouth, feet, hair_between_eyes, indoors, kantai_collection, long_hair, looking_at_viewer, looking_back, no_shoes, panties, ryuujou_(kancolle), sitting, smile, soles, solo, tama_(tamago), toes, twintails, underwear, underwear_only, window