He Yunxiao is Tong Xue's junior high school classmate. He enjoys teasing Tong Xue every day. High school is a dividing line. The two are in different classes, but they draw lines of intersection in parallel worlds. What is the second girlfriend? Tong Xue's university teacher turned out to be her childhood sweetheart who had immigrated for many years. The three people's tortuous experiences and twists and turns of love stories. Who will Tong Xue end up with in the end? There is a story about them, would you like to read it?