akira hamaguchi, darling in the franxx, effects, liquid, 1girl, hiro (darling in the franxx), 1boy, zero two (darling in the franxx), pink hair, black hair, long hair, cloud, sky, closed eyes, horns, white hairband, topless male, oni horns, day, hairband, blue sky, one-piece swimsuit, sweatdrop, cloudy sky, blue eyes, blush, red horns, swimsuit, hetero, couple, bangs, ponytail, white dress