Inside the great hall of Qiankun City, the illusory river above Chen Fei's head appeared for a moment, then slowly vanished.
Past Time Subordinate Rule had been completely condensed by Chen Fei. From then on, of the three known Time Subordinate Rules, Chen Fei had finished cultivating them all, and had condensed them into an incomplete Time Rule Crystal within his divine soul.
Judging from the Time Rule Crystal's degree of completeness, it seemed that only one Time Subordinate Rule was missing before a complete Time Rule could be integrated.
The Ninth-Order Supremes of the Ruin Realm all believed there should be five Time Subordinate Rules, because every other rule was condensed from five subordinate rules, and the Time Rule was likely no exception.
It was just that no one knew what the other two Time Subordinate Rules were, even now. Even within the Void Source, there were no traces of those two Time Subordinate Rules to be seen.
Chen Fei's conclusion, drawn from the incomplete Time Rule Crystal, that there were only four Time Subordinate Rules would probably not convince many Ninth-Order Supremes.
With the Time Subordinate Rule cultivated, Chen Fei gave the newly freed cultivation slot to Frost Heavenly Dao.
Frost Heavenly Dao had once had a master, but at some unknown point, that Ninth-Order Supreme had died and suffered Dao Dissipation, causing this Heavenly Dao to be vacated outright.
Moreover, after Chen Fei's consciousness entered Frost Heavenly Dao, he did not discover any other Supreme intending to occupy this Heavenly Dao.
However, Frost Heavenly Dao was not considered a particularly Powerful Heavenly Dao, so it was normal for the struggle over it to be less intense. Since he had found no Supreme contending for it, Chen Fei naturally began comprehending it directly.
Compared to Lin's Heavenly Dao,