I recommend the following two fantasy novels related to the World Tree: 1. " The First Ancient Ancestor " told the story of Xia Shenzi plucking the fruit of the Flame Spirit World from the World Tree in order to repair his wings. After going through hardships, he became the First Ancient Ancestor. 2. " Cultivation with the World Tree " told the story of the female protagonist, Jiu You, who had a small World Tree. She wanted to go against the immortals and achieve hegemony through fast transmigration, plane, system, and other methods.