Fifteen Days Later;
The entire structure of the mana circuit had completely changed. It was no longer a structure with intricate lines but rather a dark vacuum.
The outer layer of this space was the complete exterior of the circuit. That's why the size of the mana circuit was so important.
The inner space was accumulated to create a vacuum, while the lines and materials on those lines were used to create the barrier around the vacuum.
This process consumed a large amount of mana. At least, just to pull together all of the space inside the lines took nearly fifty percent of the energy from the Yin Essence Stone.
That meant he had to rest for at least a day every three days just to recover his Yang Energy and proceed to create mana.
Normally, a treasure of this level would be more than enough to support his progress.
But his mana was exceptionally high-level, so a little bit of energy wasn't enough.
