background animation, darling in the franxx, hair, kazutaka sugiyama, 1girl, hiro (darling in the franxx), zero two (darling in the franxx), pink hair, 1boy, long hair, black hair, uniform, bodysuit, military uniform, military, horns, pilot suit, holding hands, couple, oni horns, hetero, white hairband, socks, red bodysuit, hairband, long sleeves, red horns, looking at another, bangs, leg up, shorts