2girls, ahoge, animal_ears, arknights, ass, barefoot, bdsm, black_hair, bondage, bound, collar, dobermann_(arknights), dog_ears, feet, foot_focus, foot_worship, gravel_(arknights), heart, knees_up, lan_mao_akko, legs, looking_at_another, multiple_girls, no_shoes, open_mouth, pantyhose, pink_hair, rolling_eyes, soles, studded_collar, sweat, tail, toe_sucking, toes, tongue, tongue_out, yuri