Adam sat cross-legged in the center of the chamber, his eyes closed and breathing steady.
The runes on the floor lit up in a blinding light as the advancement began. The essence of the five hearts was gradually absorbed by the formation and used as fuel for the advancement.
He began circulating the mana inside his body through the method described in the Astral Tyrant Manual.
The first stage was the nourishment of the flesh. A vast amount of mana surged through Adam's body, seeping into every inch of his flesh and beginning the process of transforming it. His muscles trembled violently as the mana entered them, tearing apart old tissues and rebuilding them into something stronger.
Adam's eyelids trembled. The pain was immediate, but bearable. It felt as though countless needles were being driven into every muscle in his body simultaneously. His flesh burned, twisted, and contracted as his mana slowly permeated through it.
Yet he remained motionless. Everything was under control.
