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