Liu Yan tried again, but there was still no effect.
Liu Yan could only give up helplessly. It might be due to the level of Divine Extraction was not high enough to upgrade an SS-grade treasure.
It seemed it could only be used when Divine Extraction advanced to tier 4 or higher.
Although he was slightly disappointed, Liu Yan had already expected it.
Even if the Legendary Gemstone did not undergo the Divine Extraction to increase its level, it was still an SS-grade treasure. It was already powerful.
Up until now, Liu Yan only had two pieces of SS-grade equipment. They were the Blue Flame Gloves and the Gale Boots.
And SS-grade equipment was far from being comparable to SS-grade treasures.
Generally speaking, treasures were much more precious and stronger than equipment of the same grade.
Liu Yan did not know how to use Legendary Gemstone. He could only use it to strengthen his equipment.
