As a Sage, green-robed Sage Nun's cultivation technique was truly very strong.
All Mo Wuji could see was faint white fog condensing around the peak grade god spiritual vein. After a short period of time, this white fog completely enveloped the Sage Nun's weak primordial spirit.
The peak grade god spiritual vein was also visibly dissolving into the ground rapidly. Mo Wuji started suspecting that this woman might be able to return to her full strength if Mo Wuji were to throw out hundreds of peak grade god spiritual veins now.
However, Mo Wuji didn't have a close relationship with green-robed Sage Nun. In fact, they even had some enmity between them. Therefore, Mo Wuji would naturally not waste any more peak grade god spiritual veins on her.