C283 Find a teacher

Song Cheng was a boy and had his own teacher. Furthermore, he had learned quite well. But his sister didn't have a teacher, and there was no one to teach her how to learn. He wanted her to study with him.

Afraid that elder sister would not agree, he mustered his courage to come and tell her about it today. He knew Big Sis had been very busy recently and didn't have the time to care about them