2girls, ass, barefoot, bikini, blonde_hair, blush, bow, breasts, brown_eyes, brown_hair, feet, feet_out_of_frame, foot_out_of_frame, green_eyes, hair_bow, half_updo, idolmaster, idolmaster_cinderella_girls, knees_up, komatsu_eiji, long_hair, looking_at_viewer, multiple_girls, name_tag, one-piece_swimsuit, ramune, sakurai_momoka, school_swimsuit, short_hair, small_breasts, swimsuit, tachibana_arisu, toenails, toes, wet