One of the antagonists of The Promised Neverland. He belonged to the group of Demons called the Poachers. It was later revealed that he served as a purveyor for the Grand Valley orphanage who delivers the children to Goldy Pond. Lewis was a tall and slender demon with three fingers on each hand, and three toes on each foot. His entire body is clothed and he wears a high collar cape over it. He also wears a matching top hat decorated with rope-like looms. Just like most other demons, his face is covered with a mask with four holes on top of each other with the upper three allowing him to see, and the bottom one which revealed his sharp canines. He also owns a pet named Parvus which is often seen on his shoulder. It has two eyes (one on top and a much bigger one below) and the physical features of a monkey, and it wears a tiny crown on top of its head.