C321 Qin Feng's Grandfather

Although the success rate of System refining was high, the speed was not very fast. It required 24 hours to successfully refine.

However, Ye Ziheng was not in a hurry. Seeing that the System could be refined into a Fourth-grade Instrument, he directly put away the Stats Window and continued to do his own things.

At around nine o'clock that night, Ye Ziheng was playing with the Kui. Suddenly