In the novel 'My Last Girlfriend,' also known as 'MLG' and '我的末世女友,' readers are immersed in a post-apocalyptic world where the male population has been decimated by biological viruses, leaving only women behind. The story follows a male protagonist from the past who finds himself in this female-dominated society 400 years later, navigating the challenges and dynamics of a matriarchal urban life. With themes of time travel and a lack of common sense, this novel offers a unique blend of modern-day struggles and naivety, featuring a lazy protagonist trying to adapt to an unfamiliar world.