5girls, arm_up, armpits, ass, bikini, bikini_skirt, blonde_hair, blue_hair, blue_sky, blush, breasts, cleavage, collage, collarbone, dark_blue_hair, day, floral_print, grey_hair, hayami_kanade, ice_cream_bar, ichinose_shiki, idolmaster, idolmaster_cinderella_girls, innertube, jougasaki_mika, kamoromance614, lipps_(idolmaster), looking_at_viewer, medium_breasts, miyamoto_frederica, multi-strapped_bikini, multiple_girls, navel, o-ring, o-ring_bikini, one_eye_closed, outdoors, pink_hair, polka_dot, polka_dot_bikini, print_bikini, purple_hair, shiomi_syuko, sky, smile, striped, striped_bikini, swimsuit, w