akira hamaguchi, darling in the franxx, effects, liquid, 1girl, hiro (darling in the franxx), zero two (darling in the franxx), pink hair, 1boy, swimsuit, long hair, one-piece swimsuit, black hair, topless male, horns, cloud, hetero, sky, ponytail, couple, day, hug, water, blue sky, oni horns, closed eyes, looking at another, outdoors, red horns, partially submerged, competition swimsuit, anime coloring, cloudy sky, white one-piece swimsuit, face-to-face