Lee Woo-Hyeok is an author who innovated a new kind of fantasy based on Korean history. He is the highest earning Internet author in Korea. For example, he earned more than two billion won from royalties. He is a famous writer, and successfully runs the IP company called Hyeok Net. He has published best-sellers such as Toemarok(The Soul Guardian), Waeran Jongyeolja(The Protector of Korea from Japanese Invasion), and Chiuchenwangi(King Chiuchenwang).

For readers who like both history and fantasy, the story of Waeran Jongyeolja would be fantastic. There have been western styled monsters like dragons, trolls, and ogres in fantasy novels so far, but Waeran Jongyeolja is totally different. We can find original Korean ghosts and monsters in this book. The plot is about finding the protector of Korea from Japanese invasion, and about covert fighting between good monsters and bad monsters in the spirit world.

This book is famous for several reasons. First, this book is a new approach to Korean fantasy, because the author based the fantasy world on real historical facts. Second, this book shows Korean ghosts and monsters for the first time in a fantasy novel, so it highlights those monsters in a modern literary world. Finally, because the author precisely based the plot and historical background on three years of study, this book is famous for having an enormous list of reference books.