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