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, horns, cloud, sky, oni horns, topless male, white hairband, day, blue sky, red horns, ponytail, sweatdrop, couple, hetero, blue eyes, green eyes, closed eyes, cloudy sky, blush, white dress, one-piece swimsuit, hairband