C570 There Is a Problem with the Herbs Prepared by the College

After Luo Jiuhuang heard this, he only responded with one sentence: "Big Brother, don't worry, I know what I'm doing!"

With that, Luo Jiuhuang cut off the sound transmission between them.

Luo Yanqing once again used the Voice Transmission Technique to speak to Luo Jiuhuang, but he discovered that it was impossible.

The more Luo Yanqing thought about it, the angrier he got