Bone and Soul

I'm very supportive. Since I mentioned before that I was at the same table with Xu Xiaoya for three years in high school and Xu Xiaoya went to college half a month later, why did someone from 8 to 24 appear later? Since I am 24 years old, why did I still sit at the same table with Xu Xiaoya? It seems that the family conditions of the protagonist's family are not bad. Why is he 6 years overage? He was in the first grade of elementary school at the age of 6. You didn't go to elementary school until you were 12 years old.