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, swimsuit, cloud, topless male, long hair, sky, horns, day, water, bikini, ponytail, partially submerged, outdoors, blue sky, red horns, tree, anime coloring, oni horns, cloudy sky, white bikini, looking at another