2girls, absurdly_long_hair, animal_ears, ass, bikini, breasts, brown_hair, butt_crack, caustics, day, floppy_ears, hair_between_eyes, hijikawa_arashi, inaba_tewi, knees_up, light_smile, long_hair, multiple_girls, one-piece_swimsuit, outdoors, parted_lips, partially_submerged, purple_hair, rabbit_ears, red_eyes, reisen_udongein_inaba, school_swimsuit, short_hair, small_breasts, solo_focus, standing, swimsuit, teeth, touhou, very_long_hair, wading, water