Xu Zhicheng and Xu Duoyu were adapting well to school, and Xu Duoyu would come home from school every day as cheerful as a little sparrow.
Xu Zhicheng also became more and more cheerful.
During class, he tried his best to listen to the teacher, and even if he didn't understand, he still listened hard. He wrote down everything that he could, exactly as it was.
After school, he would take his notes to Xu Niannian, asking her to teach him.
Xu Niannian was very patient in teaching him, acting as Xu Zhicheng's personal tutor.
After teaching her own younger brother, Xu Niannian discovered that Xu Zhicheng was particularly intelligent; he could accurately remember any character or number she taught him just once.
He was diligent too; if he could match the pronunciation with the character, he would repeatedly write it down until he was familiar.
