Long story short.
Ji Changsheng only took three hours to journey from Qi Country to Guanyin Hall and back to Qi Country.
By the time Ji Changsheng returned to Qi Country, he had achieved Void Refinement.
Guanyin Hall... was completely transformed, barely keeping its original name.
Yu Linglong suggested renaming Guanyin Hall to Hall of Longevity, but Ji Changsheng firmly rejected this.
In the future, he was supposed to inherit the Heavenly Emperor Palace from South Pole's Emperor Changsheng and could also inherit the Jade Void Palace built by his father, Heavenly King Yuan Shi, on Kunlun Mountain.
Compared to that, starting his own sect would be too much trouble.
Guanyin Hall was fine.
He had promised that Guanyin Hall would go to Slave Yan - he's a man of his word.
Thus, he decisively left Guanyin Hall without any regret after he ascended to the Void Refinement Realm, and after he had nearly wiped out the Netherworld demons that he had discovered hidden in Guanyin Hall.
