1girl, 4me_4ma, ass, black_skirt, black_socks, brown_hair, chair, feet_out_of_frame, from_behind, japanese_clothes, kantai_collection, kariginu, on_chair, panties, pleated_skirt, red_shirt, ryuujou_(kancolle), shirt, sitting, skirt, socks, solo, striped, striped_panties, twintails, underwear