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, hetero, horns, long hair, looking at another, couple, green eyes, sky, blush, blue eyes, face-to-face, cloud, blue sky, day, oni horns, hug, anime coloring, red horns, smile, hairband