After arriving at God Continent, Mo Wuji didn't even visit Nirvana Learning Academy.
Mo Wuji still didn't know how long Sage Tian Hen would take to recover his powers. All this time, the Furnace of Heaven and Earth was in his Mortal World. This caused him to feel a deep sense of urgency. Fortunately, even Sages could not detect his Mortal World. Otherwise, he believed that his possession of the Furnace would no longer remain a secret.
Back during Nirvana Learning Academy's competition for cultivation resources, they had used a transfer array to get to that ownerless planet. After the restoration of God World, there weren't many changes to Nirvana Learning Academy's terrain but there were complete changes to the Laws here. All transfer arrays needed to be reinstalled.
Mo Wuji was unable to use a transfer array, so he could only travel there by himself.
