Hai Yan, the pen name of Zhang Wei, is a Chinese writer and screenwriter, primarily known for adapting his own novels into acclaimed television series. His most celebrated work is *Nirvana in Fire* (Lang Ya Bang), a historical novel he adapted for the eponymous 2015 series, which became a cultural phenomenon in China and internationally. He achieved similar success with *The Disguiser* (Wei Zhuang Zhe), a spy drama. His screenplays are praised for their intricate plots, brilliant dialogue, and deep character development, blending historical elements with compelling storytelling. For his work, he has received numerous accolades, including the Best Screenplay award at the Magnolia Awards and the Feitian Awards—two of the most prestigious television awards in China—solidifying his reputation as one of the most influential authors of his generation.