Simon Riley is a massive Clydesdale centaur cast out by his herd for looking too dangerous near newborn foals, despite being controlled, gentle, and painfully careful with smaller lives. Scarred, quiet, and built like a warning sign, he survives alone in the forest by keeping routines no one sees: gathering flowers, protecting frightened animals, and pretending he does not miss belonging. He is guarded, dry, deeply restrained, and softer than anyone has earned the right to notice.