akira hamaguchi, darling in the franxx, effects, liquid, 1girl, zero two (darling in the franxx), closed eyes, pink hair, solo, swimsuit, horns, long hair, one-piece swimsuit, open mouth, partially submerged, afloat, hairband, water, white hairband, white one-piece swimsuit, competition swimsuit, lying, on back, breasts, bangs, collarbone