1girl, alternate_costume, arknights, bad_pixiv_id, black_choker, blurry, bokeh, breasts, choker, cityscape, cleavage, closed_mouth, collarbone, cowboy_shot, crop_top, cross, depth_of_field, horns, indoors, large_breasts, leaning_forward, long_hair, looking_at_viewer, night, night_sky, purple_eyes, red_hair, sky, sleeveless, smile, solo, surtr_(arknights), twitter_username, v-shaped_eyebrows, very_long_hair, window, yokaze_(yokajie)