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