Giving a nickname to a protagonist was a common literary technique. It could make it easier for readers to remember the protagonist and make the protagonist more lively and interesting in the story. Here are some suggestions for nicknames for the main characters in novels: 1. Name with the word in the name: For example, if there is a word in the protagonist's name, you can take a nickname named after that word, such as "Wen Ruoshan","Su Xinghe","Duan Tianya", etc. 2. It was named after the protagonist's characteristics or characteristics. For example, the protagonist was smart and could be called the " Prodigy Emperor "," Intelligent Emperor "," Genius Emperor ", etc. The protagonist was brave and fearless, so he could be called the " Brave Emperor "," Fearless Emperor ", etc. 3. Names based on the protagonist's appearance or personality traits. For example, the protagonist's handsome appearance could be called "Handsome Emperor" or "Handsome Emperor"; the protagonist's gentle and kind personality could be called "Kind Emperor" or "Gentle Emperor". 4 was named after other numbers or days. For example, if the protagonist was born on this day, he could be called " One Emperor " or " Heavenly Emperor ". 5. The names of the things that the main character did in the story. For example, the main character saving the world could be called "the savior" or "the savior". Choosing a nickname required taking into account the protagonist's name, characteristics, appearance, personality, and background of the story to choose a name that would make it easier for the audience to remember.