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