C273 16th

Chen Yao shook his head: "I don't think it's that simple."

Zhuo Yanbei nodded, "Indeed, Zhao's guess is in the wrong direction."

Zhao nodded and stopped interrupting.

"First, you must remember two key words. One is the heart, and the other is vitality." Zhuo Yanbei said softly, "This is the most important thing in the killer's eyes