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For Cheng Guang, the pace of his cultivation progress was frustratingly slow, but if other royal descendants knew about it, they'd likely be green with envy to the point of spitting blood.
Who could make a breakthrough in the Yin God Realm within a mere month of cultivation?
Even Wu Shang, the current Emperor Zhou, spent a full year to break through the Yin God Realm from the start of his cultivation.
But Cheng Guang?
He did it in less than a month.
This tenfold disparity was not something that could be brushed off with a few words.
Cheng Guang might not have been aware of these facts, but he was conscious of the fact that his cultivation pace was not slow. Yet even so, to break through to the Yang God Realm would still take him two to three months' time.
But now…
He had merely visualized the Proving Dao Map for a moment—the True Lord of Pure Origin's Proving Dao Map!
His cultivation level had shot up dramatically!
