darling in the franxx, hair, rie ishige, running, smears, takafumi hori, hiro (darling in the franxx), 1girl, 1boy, zero two (darling in the franxx), pink hair, long hair, black hair, horns, topless male, barefoot, oni horns, parody, uniform, sitting, green eyes, box, stairs, anime coloring, book, red horns