1girl :d all_fours armpits ass bangs beach bikini blue_sky bracelet breasts brown_eyes commentary_request covered_nipples day hair_between_eyes hair_ornament high_ponytail highres idolmaster idolmaster_cinderella_girls jewelry jougasaki_mika long_hair medium_breasts multi-strapped_bikini nail_polish ocean open_mouth outdoors parasol pink_hair pink_nails purple_bikini shiny_skin sideboob sky smile solo_focus summer sunlight swimsuit umbrella yam_(htt)