C493 The Audio Conversation

Yan Zhen's voice was very soft, but Yan Zhen could hear it clearly. Although she did not know what was going on, it did not stop her from getting to the point.

"In other words, these photos were actually taken based on shadows?"

"Yes," Wang Yao said. However, there are some loopholes in these photos. If the photos are not handled properly, it is very easy for people to find out what's going on