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, cloud, long hair, horns, sky, topless male, partially submerged, day, water, outdoors, twintails, red horns, tree, blue sky, swimsuit, one-piece swimsuit, oni horns, cloudy sky, couple, rock, anime coloring