darling in the franxx, hair, smears, tomoyo kamoi, 1girl, 1boy, hiro (darling in the franxx), long hair, pink hair, zero two (darling in the franxx), black hair, ass, nude, tree, hetero, forest, nature, clothed male nude female, uniform, military uniform, military, completely nude, from behind, necktie, couple, horns, long sleeves, outdoors