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