That year, our classmate Yidong was ten...
As mentioned before, Yidong and Motan were classmates in middle school, high school, and college, not to mention fellow orphans in the children's home. Of all times, they interacted the least during the years when the former was adopted home. Motan was already delving into stuff way advanced for his age, while Yidong was... in elementary school. As Yidong puts it now, that period was the most innocent phase in his life.