The crystallization array required some time for "preheating" before it could exert enough pressure to further crystallize Ronan's spiritual power, so the process of upgrading his Seal was fairly relaxed.
The rune of [Frozen Tundra Soil] was already etched into his heart, and Ronan carefully "sculpted" it, easily completing the upgrade of the entire Seal.
Then, taking the Solidification Potion that would soon be needed in hand, he waited for the pressure from the crystallization array to suddenly surge...
"Crack, crack—"
Finally, the spiritual power group entrenched in his mind began to show signs of collapsing inward, much like a fluffy snowball being gradually squeezed into a block of ice.
Ronan also felt threads of pain emanating from his soul.
He called forth the [Frozen Tundra Soil] Seal that had already been refined in his Consciousness Space and imprinted it into the contracting spiritual power group.
