1girl, o, armpits, arms_up, barefoot, blue_hair, blue_one-piece_swimsuit, flat_chest, idolmaster, idolmaster_cinderella_girls, kawaseki, long_hair, looking_at_viewer, name_tag, one-piece_swimsuit, one_eye_closed, red_eyes, sajo_yukimi, school_swimsuit, shirt, simple_background, sitting, solo, swimsuit, undressing, white_background, white_shirt