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