"Hoo hoo hoo——"
Accompanied by the swirling vortex of spiritual energy above Caiyun Peak, spreading continuously and permeating with spiritual pressure, Qingyun Sect's Mountain Protection Array also began to operate at this moment.
After all, a breakthrough to Core Formation was a major event for Qingyun Sect!
They would not allow any interference!
At this moment, there were Nascent Soul Immortals within Qingyun Sect who had woken up from closed-door cultivation, sitting in the Sect to protect and oversee the process.
"Is this Qingyun Sect's Mountain Protection Array?"
Lu Changsheng looked towards the sky.
Before his eyes, the entire Great Formation resembled an upturned bowl made of white jade and glaze, emitting dazzling light, with rolling clouds pervading it, and within seemed to be azure dragons soaring.
While the Great Formation did not emit any terrifying spiritual pressure, the mere sight of it already gave off an unfathomable sense.
