Many novels involve the protagonist using a pistol. The following are some common novels and the stories involving the protagonist using a pistol: 1. Science fiction: Many science fiction novels have plots in which the protagonist uses a pistol, such as "The Milky Way Empire" and "2001 Space Oasis". In these novels, the protagonists often used advanced pistols to fight against alien creatures or civilizations. 2. Wuxia novels: The protagonists in Wuxia novels usually have superb martial arts and superb pistol skills. For example, the protagonists in novels such as " The Condor Heroes " and " Demigods " had used pistols to fight. 3. Horror novels: The protagonists in horror novels usually encounter various terrifying scenes, including the use of pistols. For example, the main characters in novels such as " Gun Lover " and " Horror Cruise " had used guns to deal with various horror scenes. 4. Detective novels: The protagonists of detective novels usually have keen observation skills and superb pistol skills. For example, the protagonists in Sherlock Holmes, The Great Reversal, Murder of the Green Toe, and other novels had used pistols to solve cases. There were many different novels with different plots and styles in which the protagonist used a pistol.