akuma shitsuji to kuroi neko, commentary request, highres, 1boy, 1girl, arm around shoulder, bib collar, black vest, blue hair, blue ribbon, brother and sister, buttons, collared shirt, double-parted bangs, frilled shirt collar, frills, grin, hair between eyes, hand on another's shoulder, haures clifford, light blush, long hair, looking at viewer, low ponytail, neck ribbon, nonoko (meg36544), orange background, outline, parted bangs, ponytail, red eyes, ribbon, sanpaku, shirt, siblings, side part, signature, smile, three-quarter sleeves, tricia clifford, vest, waistcoat, watermark, wavy hair, white outline, white shirt