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