1girl, o, ahoge, blush, bra, breasts, cleavage, collarbone, idolmaster, idolmaster_shiny_colors, komiya_kaho, light_rays, long_hair, looking_at_viewer, masuku_(saint_mask), medium_breasts, mirror, navel, panties, red_eyes, red_hair, solo, stomach, sunlight, sweatdrop, underwear, underwear_only, undressing, very_long_hair, voyeurism, washing_machine, yellow_bra, yellow_panties