The breakthrough process lasted for a full three days.
At the final moment, the hundreds of thousands of Mid-grade Spirit Stones that Chen Nan took out were already exhausted, but he felt he was just a bit short, so he took out a dozen top-grade spirit stones.
The Spiritual Energy contained in top-grade spirit stones is a hundred times that of Mid-grade Spirit Stones, so the time they're retained in his hands is also longer.
Chen Nan felt the Mana in his body had reached a limit, and even a tiny bit more would be unbearable, so he desperately compressed the Mana within the Golden Core.
Finally, the dense Mana, under constant compression, suddenly liquefied, transforming into a drop of golden liquid, followed by a second, a third, and ultimately all the Mana within the Golden Core had turned into liquid, as if it truly formed a golden lake.
