II. World War has an important place in the history of Germany, as it affected the society deeply in sociological, economic and psychological aspects and the damage left is not easily lost. Therefore, World War II and post-war period has been the subject of many literary works. Depicting of the social panorama reflected in the novel "The Pure Changer" by Siegfried Lenz, one of the German literary writers constitutes the aim of the study. Considering the fact that other social sciences can be used while interpreting literary works, the novel has been handled within the framework of Hannah Arendt's philosophical views, taking into consideration the interdisciplinary perspective. In addition, while analyzing the novel, the text-based approach style was taken into account. In this study, the style of writing of Siegfried Lenz was mentioned and the novel was analyzed considering the philosophical views of Hannah Arendt. In this study, the search for the truth with conscientious, critical and moral principles by elusion of the reality of evil becoming ordinary, of individuals who have ideas and can assume responsibility among German soldiers during the war period and the post-war period are discussed in the novel. Key words: Post-war German Literature, Siegfried Lenz, Hannah Arendt