Elves are common, but they are rare in Nordic mythology, mainly because Norse people advocate force. Later, several elves who were good at force appeared, but they were still a few. However, the elves in Greek mythology are not the protagonists, and most of them are spread between folk and witches. Dwarves are a patent in northern Europe, but later they also penetrated into Greek mythology; There are many orcs. In fact, goblins in China also have orc genes. Demons are everywhere.