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