1girl, arm_behind_head, blush, bra, breasts, brown_eyes, hair_flaps, ishida_arata, kantai_collection, light_brown_hair, long_hair, looking_at_viewer, medium_breasts, murasame_(kancolle), navel, panties, pink_bra, pink_panties, polka_dot, polka_dot_bra, polka_dot_panties, simple_background, solo, twintails, twitter_username, two_side_up, underwear, underwear_only, white_background