The K3-Level.
It was the next level after K2 and was actually not the third level, but the fourth, since the Phantoms started from K0-Level.
Furthermore, K3-Level was very close to the true peak where the strongest Phantoms were. Every K3 Phantom had a chance to become a K4 one, and some of them reached Second Rank.
Sure, to get to K3-Level, a Phantom had a long way to go, but any Phantom who aspired to power saw himself reaching that level in the future.
Adam's eyes went wide, while Refesa's words echoed time after time in the depths of his mind.
"This is some nonsense... The First and the Second Wall, then create the Second Key and open the second keyhole... Is there some extra step?"
Refesa remained silent. She could answer his question, but she just didn't see the point of it. Her job was to perform a Gene Diffusion for them.
