1girl, ahoge, arms_up, blue_eyes, breasts, ichinose_shiki, idolmaster, idolmaster_cinderella_girls, indoors, light_smile, long_hair, looking_at_viewer, looking_to_the_side, medium_breasts, messy_hair, panties, see-through_silhouette, side-tie_panties, sitting, smile, solo, sunlight, tank_top, underwear, undressing, white_tank_top, yinrain0023