2girls, d, bikini, blue_bikini, blush, breasts, brown_eyes, brown_hair, cleavage, closed_mouth, collarbone, dr._gero_(staedtler_0508), floral_print, from_below, hair_ribbon, hands_on_own_chest, idolmaster, idolmaster_cinderella_girls, idolmaster_cinderella_girls_starlight_stage, kneeling, large_breasts, long_hair, looking_at_viewer, multiple_girls, multiple_views, navel, o-ring, o-ring_bikini, oikawa_shizuku, open_mouth, pink_bikini, pink_ribbon, ribbon, short_hair, side-tie_bikini_bottom, sideboob, smile, staring, striped, striped_bikini, swimsuit, thighhighs, totoki_airi, twintails, underboob, white_background, white_thighhighs