Rebirth novels referred to novels that were reborn in a special historical period or space. They usually involved elements such as time travel, historical rewrite, spatial transformation, etc. Some rebirth novels also involved interpersonal relationships and character creation after rebirth. There were many types of rebirth novels, such as fantasy, romance, science fiction, horror, etc. There were also different subjects and styles, but they all had one thing in common, which was to change the fate of the protagonist through rebirth and show an unusual life experience and worldview. Rebirth novels were very popular among online novels because they could enhance the drama and plot tension of the novel, and at the same time, they could also resonate with the readers and make them emotionally invested. However, rebirth novels were often controversial because they might involve some sensitive and controversial topics such as historical truth, moral ethics, etc.