2016, 4girls, ahoge, bikini, bikini_skirt, blonde_hair, breasts, cleavage, collarbone, day, diadem, eyebrows, eyebrows_visible_through_hair, frilled_bikini, frills, groin, hair_ornament, hair_ribbon, long_hair, looking_at_viewer, medium_breasts, multiple_girls, navel, open_mouth, outdoors, palm_tree, pink_bikini, pink_eyes, pink_hair, pool, purple_eyes, red_eyes, red_hair, red_ribbon, ribbon, sideboob, silver_hair, star_(symbol), star_hair_ornament, striped, striped_bikini, swimsuit, tree, twintails, two_side_up, underboob