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