1girl, ahoge, black_hair, blue_eyes, braid, grey_sports_bra, hair_flaps, hair_ornament, hair_over_one_eye, hair_over_shoulder, kantai_collection, koshigaya_tatsumi, looking_at_viewer, midriff, one-hour_drawing_challenge, shigure_(kancolle), shigure_kai_san_(kancolle), single_braid, solo, sports_bra, upper_body