C628 Third Grade!

Elder Du smiled helplessly. "I told you before that if you really want to completely absorb this power, it will take a long time. It has already been three or four days!"

Soong Tianxuan's expression showed that he was slightly surprised, but in his heart, he understood what was going on. After all, if he really wanted to completely absorb such a huge amount of energy, it would take a lot of time