"Y: The Last Man" is a post-apocalyptic comic book series created by Brian K. Vaughan and Pia Guerra. It follows the story of Yorick Brown, the last surviving male human after a mysterious plague wipes out all male mammals on Earth. Alongside his pet monkey, Ampersand, Yorick embarks on a journey to discover the cause of the plague and find a way to restore humanity. The series explores themes of gender, survival, and societal change as Yorick encounters various female characters, including Agent 355 and Dr. Allison Mann, who help him navigate this new world. The narrative raises questions about identity and the roles of men and women in society.