waichi, perlica (arknights), arknights, arknights: endfield, commentary, 1girl, back, backless shirt, bird girl, black gloves, blue eyes, collared shirt, feather hair, from behind, gloves, grey hair, grey jacket, grey shirt, jacket, long hair, looking at viewer, looking back, median furrow, off shoulder, open clothes, open jacket, shirt, shoulder blades, simple background, smile, solo, upper body, white background