akira hamaguchi, darling in the franxx, effects, liquid, 1girl, hiro (darling in the franxx), 1boy, black hair, pink hair, zero two (darling in the franxx), long hair, cloud, topless male, swimsuit, sky, horns, ponytail, day, partially submerged, water, bikini, outdoors, oni horns, blue sky, tree, cloudy sky, red horns, looking at another