akira hamaguchi, darling in the franxx, effects, liquid, 1boy, hiro (darling in the franxx), zero two (darling in the franxx), 1girl, pink hair, black hair, horns, sky, cloud, red horns, oni horns, parody, day, blue sky, long hair, anime coloring, blue eyes, bangs, cloudy sky, looking at another, green eyes, hetero, couple