akira hamaguchi, darling in the franxx, effects, liquid, 1girl, hiro (darling in the franxx), zero two (darling in the franxx), pink hair, 1boy, black hair, horns, closed eyes, hetero, long hair, couple, sky, hug, blush, red horns, anime coloring, cloud, looking at another, face-to-face, blue sky, oni horns, day, blue eyes, smile