Fall into copyright ownership and infringement disputes. The plaintiff is authorized to enjoy the exclusive copyright and rights protection of the musical work Fairy Fairy in Chinese mainland. Without the plaintiff's authorization and without paying any user fees, in 2020, four anchors, such as Xiao Nan Nan Yao Kuaile, Qiu Xiao Xi C, Hao Xiuman and Xiao Bi Li, sang "The Dead Immortal" 12 times in the live broadcast room operated by the defendant, and interacted with fans watching online in real time, which won huge rewards from fans.