Na Duo, whose real name is Zhao Yan, is a renowned Shanghai-born suspense writer. A former civil servant, journalist, and businessman, he now dedicates himself fully to writing. Na Duo excels at weaving captivating narratives that draw inspiration from real-world news and historical happenings. Since launching his writing career in 2001, Na Duo has produced over 30 works of fiction, including series like Stories of Three Kingdoms, Constellation Love Stories, Na Duo's Notes, and the Witchcraft Series. After 2012, his focus shifted to the contemporary world. His novels are recognized for their intricate logic and exploration of human nature.  

Among his critically acclaimed works are No One Innocent in 19 Years, The Knight's Sacrifice, and I Have Been Here.