1girl, 2021, arknights, artist_name, black_collar, black_dress, breasts, cleavage, collar, cowboy_shot, demon_girl, demon_horns, detached_collar, dress, elite_ii_(arknights), happy_new_year, horns, looking_away, medium_breasts, powerlesssong, purple_eyes, red_hair, signature, simple_background, sleeveless, sleeveless_dress, solo, spaghetti_strap, surtr's_golem_(arknights), surtr_(arknights), sword, weapon, weibo_logo, weibo_username, white_background