In reality.
He mainly cultivated the Inner Strength "Lu Wu Demon Cleansing Scripture" during the Grandmaster Limit period, almost reaching the Thirteenth Layer, but didn't want to waste Qi-Blood and deliberately slowed down his cultivation progress.
After becoming a Great Grandmaster, he broke through the Qi-Blood shackles, raising the Qi-Blood limit to ninety thousand. Without this concern, he opened up in cultivation, and so after just a year of seclusion, he broke into the Middle Realm.
Qi-Blood, Breakthrough Thirty Thousand!
This is accumulating strength for a big leap.
Of course, such cases are rare. Under normal circumstances, even for him, cultivation from the Initial Realm to the Middle Realm of Qi-Blood, within the Grotto Heaven, would take two to three years.
Additionally, he felt some urgency, worried about unforeseen issues during the Six-Headed campaign, so over the past year of cultivation, he appropriately increased the intake of Mid-grade Primordial Stones.
