The female protagonist picks up a corn snake named Ke Le, and accidentally discovers that it can use Xiao She Shu, a social network that only snakes can log into. Ke Le gets to know Nian Gao, a hognose snake, and the female protagonist also gets to know Nian Gao's owner, the lawyer Li Zhou. Many injured snakes seek help from the female protagonist through Ke Le, and the female protagonist comes to help. The female protagonist tries to help a tragic Burmese python in the zoo find its owner. Enemies come to the house for revenge and commit violence, Ke Le desperately protects its master and is severely injured and dies, and Xiao She Shu also disappears accordingly. The female protagonist walks out of her grief, marries Li Zhou, and reunites with Ke Le in an illusion on her deathbed.