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