137 The Secret (2)

On earth, there should be no one who doesn't know what happened 5000 years ago. Qin Feng nodded his head, indicating to President Han that he knows what had happened back then.

Looking at Qin Feng nodding his head, President Han said with a smile, "We, earthlings, started cultivating 5000 years ago and soon discovered a big problem. No matter how hard we tried, we were unable to make a breakthrough beyond the Battle Spirit Emperor Realm. We, humans tried many ways to search for a way to make progress further but the result was only the failure."