C316 Gong Yanlan's Brother

The two times they followed, they did not see who Chen Lanzhi was in contact with, but they found the place where Chen Lanzhi hid the letter.

Regardless of whether Chen Lanzhi knew Dan Xia's identity or not, her purpose in entering the Imperial Residence was not simple. Therefore, Gong Yanlan decided to get someone to bring her away for a good interrogation