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