If this were the Mystic Feather World, those in the Dominator Realm would already have eternal lifespans and would not need to cut themselves down to accomplish such a thing.
In the Mystic Feather World, those in the Immortal Realm already lived as long as the heavens, and back then, aside from the threat of Primordial Demons, they had no troubles regarding lifespan at all.
Of course, the trouble cultivators of the Mystic Feather World faced now had already changed from Primordial Demons to Extraterritorial Heavenly Devils.
The Star Realm was a Secret Realm, its Heavenly Dao twisted. Not only did Quasi-Emperors, who were equivalent to Immortal Realm Peak, have worries over lifespan, even Great Emperors in the Dominator Realm would likewise age.
There could even be only one Great Emperor in a single era; everyone else, no matter how stunningly talented, could at most become a Quasi-Emperor.
That there could only be one Great Emperor in an era could still be understood as there being only one share of the Star Realm's Tier 15 Heaven and Earth Status Rank. Once someone was the first to prove their Dao, the others naturally had no chance.
But if one had already become a Great Emperor and would still decline because of lifespan, it could only be said to be caused by the Star Realm's twisted Heavenly Dao.
The Supremes within forbidden lands were Great Emperors of other races, who had cut themselves down and fallen to a cultivation between the Immortal Realm and Dominator Realm. When necessary, they could undergo Extreme Sublimation and recover battle strength at the Dominator Realm.
Facing such powerhouses, Chen Fei naturally had no intention whatsoever of entering a forbidden land.
But not entering a forbidden land did not mean he could not use one to make