1girl, arknights, arm_up, baseball_cap, black_jacket, blue_hair, breasts, brown_eyes, ch'en_(arknights), ch'en_the_holungday_(arknights), collarbone, dragon_girl, dragon_horns, dragon_tail, hair_between_eyes, hat, horns, horns_through_headwear, jacket, long_hair, long_sleeves, looking_at_viewer, medium_breasts, official_alternate_costume, simple_background, solo, sthk, tail, white_background