Prewar Japan saw rapid modernization and social change, sparking literary movements like Proletarian Literature and Social Realism. These movements focused on working-class struggles, social inequalities, and the impact of industrialization on Japanese society. Writers like Kobayashi Takiji and Hayama Yoshiki depicted harsh realities of labor exploitation and poverty. Meanwhile, modernist authors explored themes of alienation and psychological complexity in response to Japan's changing cultural landscape.