The protagonists are Ling Luo and Chen Gu. They met in class one and two of high school and started their journey. Campus culture
Intention: In ancient times, there was a "plum letter", which refers to the news of the plum blossoms blooming to announce the spring. It is also a metaphor for a message, an agreement, and a hope. He once said: "When I finish this chemotherapy, I will accompany you to see the plum blossoms in the West Mountain." But the plum blossoms bloomed, and he didn't wait for them, nor did the letter. The name was as light as a sigh, but it weighed down the entire cold winter.