Unbound was a web novel written by the author, Nine Star Poison Milk. The novel was first published on Qidian Chinese website in 2016 and has been loved and sought after by millions of readers. Wuyi narrated a world full of magic and fantasy elements, and told the adventures of the protagonist Fang Yun in this world. Although Unbound was not a famous novel, it had an important position in online novels because the world and plot it depicted attracted the attention and love of a large number of readers.