Xie Wenxing's childhood friend and deskmate. They grew up together and attended the same school until the second semester of their first year of high school, when Song Yuan's parents had a job transfer and he moved to Yancheng No. 1 High School. He is enthusiastic and chatty, comparing himself to a sparrow. He was overjoyed to reunite with Xie Wenxing at the start of sophomore year. He is described as an academic slacker along with Xie Wenxing.
