After giving a secret order to the Zhen Clan, Zhu Wuwan returned to the Five Treasures Peak and continued to meditate in seclusion and fuse various spells and immortal techniques.
At the same time, Zhu Wanhao had already decided that when he cultivated the Primordial Dao Crystal to the limit, he would not enter the Golden Core Stage through polishing and tempering. Instead, he would enter the Golden Core Stage through the method of rising the crystal to form Qi.
The so-called polishing and tempering was naturally tempering and polishing the Primordial Dao Essence Crystal that had reached its limit bit by bit to become smaller and more condensed. Naturally, it also became stronger and stronger.
When the polishing and tempering reached a certain level, the true essence crystal would transform into a golden core. Although this method took a long time, it was safe and basically wouldn't be too dangerous.