C643 Because

Yang Songshu had been hospitalized for a long time because of his illness. As a result, a lot of lessons were delayed. No matter how smart he was, he would not be able to keep up with others. Yang's mother's heart ached for the child, so she simply let him rest at home before going to school.

This way, he would directly be at the same level as Xue Xue'er. However, he did not mind