1girl, arm_support, beach, bikini, blue_bikini, blurry, blush, bow, breasts, breasts_apart, brown_hair, collarbone, depth_of_field, feet_out_of_frame, hair_bow, halterneck, head_tilt, idolmaster, idolmaster_cinderella_girls, loli, looking_at_viewer, nyubebe, outdoors, palm_leaf, side-tie_bikini_bottom, side_ponytail, small_breasts, smile, string_bikini, swimsuit, tachibana_arisu, water