chapter 50 A surge of anger in my heart

In the past, Nunu was always the first to run out of school, because she was anxious to see her father. But today, Leo Ling stood at the gate of the school and had been waiting for ten minutes. Seeing that all the students were about to leave, there was no sign of Nunu. Strange! Why didn't Nunu come out so late today? Could it be that he was left behind by the teacher and punished for cleaning? But he felt that Nunu was usually the most well-behaved child in the class, so he should...