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