Martial Artists in the life-and-death realm were a rarity, feared to be nonexistent in the entire victorious martial realm. A martial artist of the life-and-death realm was powerful enough to establish a kingdom and become the ruler of that kingdom.
Emperor Fertility, as guessed by Chu Fengmian, was likely once a martial artist of the life-and-death realm.
Such a phantom shadow possessed power comparable to a saint; only a powerful being from the life-and-death realm could achieve this.
It was unexpected that Saint Xuanbei had already reached the pinnacle of sainthood and was about to cross the great life-and-death ordeal, no wonder he hurriedly left.
The life-and-death great ordeal was an absolutely dangerous trial; surviving meant life, failing meant death.
The sudden arrival of the life-and-death ordeal explained why Saint Xuanbei had to leave.
To cross the life-and-death ordeal, one needed not only various preparations but also to find an open space.