The professional terms in online novels included but were not limited to: [1. Transmigrator: A person who transmigrated to a different historical era.] 2. History: It refers to the past, including historical events and people from different eras. 3. Time travel novels: refers to novels that travel to different historical eras. 4. Aerial novels: refers to novels that use fictional worldviews and historical backgrounds as the theme. 5. Rebirth novels: refers to novels that use rebirth as the theme and return to the original time and space after rebirth. 6. Fantasy novels: refers to novels with magic, mythology, martial arts, etc. as the theme. Cultivation novels: refers to novels that use cultivation as the theme to obtain powerful strength through cultivation. 8. City novels: refers to novels that use urban life as the theme to describe the lives, love, work, etc. of the characters in the city. Romance novels: refers to novels that use love as the theme to describe the love story between men and women. Wuxia novels: refers to novels that use wuxia novels as the background to describe the battles and grudges between wuxia characters. 11 Science fiction: refers to novels that use science fiction as a theme to describe the future or alien worlds. 12 Fantasy novels: refers to novels that use fantasy as a theme to describe magic, myths, races, etc. 13 Battle Through the Heavens: This is a famous fantasy novel by Tian Can Tu Dou. 14 Douluo Continent: This is a famous fantasy novel by the Tang family's Third Young Master. [15 Dominators: This is a famous fantasy novel by the author, Tian Silkworm Potato.] These technical terms were widely used in online novels and were one of the common terms in novels.