C2804 The Invasion of Another World
There was a dividing line between the True Immortal realm and the Golden Immortal realm. Only by becoming a Golden Immortal could one truly be considered to have entered the ranks of experts, and have the ability to protect a region.
There were a few hundred Golden Immortals in the human race, but there were a few million True Immortals.
From this, one could see the difficulty of advancing