C135 Destroying the Evidence

Yang Zhiming inquired, "Have you been so busy that you're not thinking straight? Do you really think I asked you that question because I want you to invent something that increases rice yields?"

Cheng Xu felt puzzled by this but chose not to voice his doubts.

Yet his expression betrayed his thoughts. Yang Zhiming observed, "I noticed Young Master Hee has been quite tied up lately