akira hamaguchi, darling in the franxx, effects, liquid, 1girl, hiro (darling in the franxx), 1boy, pink hair, zero two (darling in the franxx), black hair, sky, long hair, cloud, horns, topless male, closed eyes, one-piece swimsuit, swimsuit, day, white hairband, blue sky, oni horns, hairband, anime coloring, cloudy sky, red horns, ponytail, sweatdrop, outdoors, blush