C387 It Was All a Scheme

As a cultivator, Zhang Chu's understanding of magic tools was not very deep. At least he knew a little about them.

However, he had never even heard of a magic tool that could be upgraded, let alone seen one. Furthermore, Zhang Chu had used all of his True Qi to raise the Imperial Dragon Ring to a low Yellow Level. Regarding this point alone, Zhang Chu didn't know whether he was happy or worried