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