C425 A Strict Investigation

After Zhan Lingyun had said 'formalin' a few times, the old lady had only roughly remembered it.

"I don't know, but this matter is still under investigation." Zhan Lingyun shook his head and did not say that it was his brother who gave Zhang Lanxin the medicine.

He was worried that the old lady would think that Geh Luqing was not a good girl after hearing it. Otherwise