Joseph K. is the protagonist of Franz Kafka's novel, "The Trial." He is an ordinary man who finds himself unexpectedly arrested by a mysterious authority without being informed of the charges against him. Throughout the story, Joseph struggles to navigate a bewildering legal system that seems illogical and oppressive. As the narrative unfolds, Joseph K. becomes increasingly desperate to clear his name and understand the nature of his predicament. His journey reflects themes of alienation, bureaucracy, and the search for meaning in a seemingly indifferent world, characteristic of Kafka's unique literary style.