background animation, darling in the franxx, hair, kazutaka sugiyama, 1girl, hiro (darling in the franxx), zero two (darling in the franxx), 1boy, pink hair, long hair, horns, pilot suit, bodysuit, black hair, green eyes, red bodysuit, white hairband, oni horns, blood, hairband, red horns, anime coloring, bangs, looking at another, blood on face, open mouth, hetero