The cultivation levels of Nanji and Yunzhongzi were both higher than those of the twelve personal disciples accepted by Primordial Lord of Heaven. If he did not take them as disciples, Primordial Lord of Heaven's prestige in the Honghuang realm would surely plummet.
Sages in the Honghuang realm are immortal and indestructible, and they worry most about two things: first, the issue of lineage orthodoxy, and second, the issue of face and reputation.
Of course, some Sages do not care much about their reputation, but Primordial Lord of Heaven was precisely a Sage who cared immensely about his face!
Chapter 541