Xu Mushan (Professor of the Department of Architecture) × Wen Nanzhi (Professor of the Department of Literature)
After seven years of separation, Wen Nanzhi met Xu Mushan at Crush Wutong Road. He rolled down the window in the rain: "Professor Wen, you still don't know how to use the umbrella?" - Just like when Wen Nanzhi always lost the umbrella he gave him.
Concept: It's a short story about two professors who are flirting with each other.