1girl, ahoge, bare_arms, bare_legs, bare_shoulders, beach_umbrella, blue_sky, breasts, brown_eyes, casual_one-piece_swimsuit, day, feet_out_of_frame, from_side, hair_between_eyes, knees_up, llowoll, long_hair, looking_at_viewer, looking_to_the_side, medium_breasts, one-piece_swimsuit, original, outdoors, purple_hair, sideboob, sitting, sky, solo, swimsuit, thighs, umbrella, very_long_hair, white_one-piece_swimsuit