The first-year freshmen were divided into classes. He and she were in the same class. Three days later, they became tablemates. Three years later, they were divided into classes again. She was in Class 1 and he was in Class 3. I remember he once said: "Well, actually there is a place for you in my heart." Soon after, she said: Without you, I can no longer tell the difference. What's the difference between there and nowhere." Yes. Without him, what's the difference?