Prehistoric: Synthetic Treasure, Discovered by Yun Xiao

Traveling through the prehistoric land and becoming the elder Xuan Xu of Xuan Du, worshipped under the Sanqing Sect with Xuan Du, and became a disciple of the Master of Tongtian.

Moreover, Xuan Xu has also awakened the synthesis bar, and can synthesize everything!

When Xuan Xu succeeded in synthesizing ordinary magical artifacts into the innate treasure, Xuan Xu had already understood it!

He must be low-key, awkward development!

Before you grow up, you must never reveal the secrets of the synthetic column!

But before that, Xuan Xu needs to solve a problem!

It seems that the secret of his synthesis of the innate treasure was discovered by Yun Xiao!