Su Wan always sat by the window in the last row of the classroom. She never spoke to anyone, ate only steamed buns and pickled vegetables for lunch, and always had fresh injuries on the backs of her hands. Later, she got into Haida University, and we all thought she had finally made it through. Then I saw her on the news: intentionally causing injury, sentenced to one year and five months in prison. Everyone said she had pushed her younger sister down the stairs. But I remembered the yellowed fifty-yuan bill hidden in the lining of her suitcase. Every time she took it out to look at it, her eyes would shine. I also remembered the name written over and over on the first page of her notebook: Lu Yan. The man who reported her, testified against her, and personally sent her to prison. A year and a half later, she was released. She didn't return to Jin City or Hai City, and no one knew where she had gone. Lu Yan began searching for her like a madman. But he didn't know that on the day Su Wan left, she had tucked that fifty-yuan bill under the pillow in her hotel room, with a note beside it bearing just three words: "I don't want it anymore."