1girl, 1other, 3, ?, alternate_costume, ambiguous_gender, animal_ear_fluff, animal_ears, arknights, arm_behind_back, black_coat, black_shirt, blonde_hair, blush, closed_mouth, coat, doctor_(arknights), extra_ears, hair_between_eyes, heart, hood, hood_up, hooded_coat, horse_ears, horse_girl, horse_tail, hug, hug_from_behind, long_hair, long_sleeves, low_ponytail, nearl_(arknights), orange_eyes, seung-aeja, shirt, simple_background, speech_bubble, spoken_question_mark, sweatdrop, tail, white_background