C468 The Wonderful Use of Integral

When Li Tian returned to the house, he saw Qin Bing chatting with her mother. The two women seemed to have recalled the matters of Qin Bing's childhood, and both of them laughed heartily. Li Tian told Qin Bing a few words, and said that he had matters with National Security Service.

This was also the first time Qin Bing knew about Li Tian's identity, from this alone