Here are a few sad novels: - " I'll Wait for You in the Wind, Flower, Snow, Moon " was the story of a frustrated man who fled the city and went to Dali to meet his love. - The Richest in the World: The story of a female protagonist who was heavily in debt. - " Unforgettable Sea " was a story about the short happiness and long sadness in love. - Who Killed Her? A story that uncovers the truth. If you can, please choose to live. - [Book Traversing the Interstellar Era]: A story of a small transparent person who was forced to become cannon fodder. - "Douluo: I've become the white moonlight": A story that was even sadder than sorrow. - [Unhappy Times: The tough journey of a daughter of a wealthy family.] - "She of One Thought": A story that resonated with him, but ended sadly. - " My Path to Hiding in the Rain ": A story of Rain Shinobu, rising from the darkness, blooming in the brilliance, turning into falling rain that soaks everything.