Crossing the fairy sword

The legendary copywriting I heard from those great gods that a book must have a good copywriting to attract readers, but after being in a vacuum for so long, I really want to ask weakly: "What the hell is a copywriting!! !" Hello everyone, my name is Xiaohai, I'm still a student, I don't know how to speak. If there is anything offensive in the above-I've hit someone before-o(╯□╰)oContent label: supernatural, magical, magical, magical┃ Search keywords: Protagonists: Shangguan Chenlan, Li Xiaoyao, Zhao Linger, Lin Yueru┃ Supporting actors: Anu, Tang Yu, Jiu Jianxian, etc.