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