For the next three days, Jun Wu buried himself entirely in upgrading his array mastery.
He barely left his study, only pausing to eat a few meals and drink water before returning to his work.
Before he had stepped into the Master Realm, Jun Wu had already copied countless fragments of knowledge from the ancient soul that once resided within him.
Much of that information had seemed incomprehensible then, like a library locked shut, its doors beyond his reach.
But now, with the advancement of his cultivation, those doors have opened one after another.
With his foundation stabilized, everything was falling into place.
His comprehension in array formation advanced with terrifying speed.
Each time he practiced, his mastery in array formation improved by leaps and bounds, far beyond what anyone of his age should be capable of.
By the third day, Jun Wu could fully set up a Grade-2 Array Formation with ease, as though it were second nature.
