1boy, 1girl, :d, ahoge, bird, birdcage, cage, chaldea uniform, closed eyes, coat, collared shirt, dress, facing viewer, from side, full body, glasses, gloves, greyscale, hair between eyes, holding, holding cage, holding key, hood, hood down, hooded jacket, id card, jacket, key, leaf, long hair, looking at animal, monochrome, mouth hold, necktie, open clothes, open jacket, pants, pantyhose, ponytail, profile, shirt, shoes, short hair, simple background, smile, standing, white background