There are advantages and disadvantages to using the first and third person in a novel. Whether it is feasible or not depends on the plot and theme of the novel. Using the first person as the main character would allow the reader to be more directly involved in the story and feel the emotions and experiences of the main character, increasing the sense of immersion and realism. But it also makes the story more private and real, which may limit the development of the story because the reader has a more direct understanding and control of the protagonist's actions and decisions. Using a third person like the protagonist as a bystander could increase the degree of freedom and open up the story. At the same time, it also allowed the readers to better observe and describe the interactions between the protagonist and others, thus better displaying the character's personality and the story background. But it could also make the reader feel that it lacked realism because the reader could not really participate in the story. Therefore, it was possible to use both the first and third person in the novel, depending on the plot and theme. Some novels may choose to use two persons to better show the characters and story, while others may avoid using two persons to maintain the cohesiveness and fluency of the story.