Kong Zhiyou initially planned to enter the study to search for something when no one was around, aiming to deal with Qiuju.
As a result of seeing Chen Ji harmed, her first suspect was the person he had secret dealings with. Her second suspect, however, was Meng Yunzheng, since the matters they discussed involved him and might have something to do with him as well.
Kong Zhiyou hesitated at first, but ultimately searched the study and, upon finding these two sheets of paper, hid them away. She had her own motives—if the matter was unrelated to Meng Yunzheng, then her actions would help him.
Regardless of Meng Yunzheng or Shu Yu, both had high statuses, and if she were to encounter any trouble later, perhaps she could seek their help with this as leverage.
Previously, in court, when Shu Yu testified for Qiuju, Kong Zhiyou was furious and considered taking out those two sheets of paper, possibly dragging Meng Yunzheng into the list of suspects too.
