4_females ;d abe_nana akii aqua_eyes arm_around_waist bangs bare_shoulders beach bikini bikini_skirt black_ribbon blue_bikini blue_sky blush bracelet breasts brown_hair cleavage cloud clouds collarbone d day eyebrows_visible_through_hair fangs female fingernails front-tie_bikini front-tie_top green_eyes hair_between_eyes hand_on_another's_back hand_on_another's_shoulder idolmaster idolmaster_cinderella_girls jewelry kimura_natsuki leaning leaning_forward light_brown_hair looking_at_viewer looking_to_the_side maekawa_miku medium_breasts mismatched_bikini multiple_females nail_polish ocean one_eye_closed open_mouth orange_bikini orange_hair parted_bangs pink_bikini pink_bikini_top pink_eyes pink_nails polka_dot polka_dot_bikini ponytail ribbon safe shiny shiny_hair short_hair side-tie_bikini sidelocks sky smile striped_bikini_top swimsuit tada_riina tareme_eyes tied_hair v-shaped_eyebrows water yellow_bikini_bottom

Unknown