2girls ahoge bangs bead_bracelet beads blonde_hair blue_bikini_bottom blue_bikini_top blue_sky bracelet breast_rest breasts breasts_on_head brown_eyes cleavage cloud curly_hair eyebrows_visible_through_hair eyes_closed frills futaba_anzu hair_beads hair_ornament hair_ribbon idolmaster idolmaster_cinderella_girls innertube jewelry large_breasts light_brown_hair long_hair looking_at_viewer low_twintails lying moroboshi_kirari multiple_girls ocean on_stomach open_mouth outstretched_arms polka_dot_innertube purple_frills ribbon seashell_hair_ornament seaside shore sideboob sidelocks sky smile striped_bikini_bottom striped_bikini_top thighs transparent_ribbon tsuto twintails two-tone_bikini water white_bikini_bottom white_bikini_top yellow_innertube