C3613 What Is Eternal

Immortal Crystal was also an undying substance, but the difference was huge.

In King Of Hu'er's journal, Meng Fann had already clearly seen the core of the the Road To Immortality.

It was the undying matter.

What exactly was the undying matter? King Of Hu'er wasn't sure. As a matter of fact, he could see it in King Of Hu'er's journal