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