2girls, ahoge, arm_up, armpits, bare_arms, bare_shoulders, bikini, black_bikini, black_bow, black_hair, black_one-piece_swimsuit, blue_sky, blush, bow, brown_hair, cloud, cloudy_sky, collarbone, day, feet_out_of_frame, floating_hair, frilled_bikini, frills, grey_hair, hair_between_eyes, hair_bow, long_hair, looking_at_viewer, maruma_(maruma_gic), multicolored_hair, multiple_girls, old_school_swimsuit, one-piece_swimsuit, original, outdoors, parasol, red_eyes, school_swimsuit, sitting, sky, solo_focus, streaked_hair, swimsuit, umbrella, very_long_hair