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