On Emerald Mist Island, Lu Mingshu flipped through the information that Yu Ruohan had given her.
The Grandmaster had been living in Jasper Sun Mountain for a long time as if he was trying to comprehend something in particular, and he had never left for the outside world.
The sects and aristocratic families in Beiming learned about the Grandmaster long ago, and they knew that he didn't like to be disturbed.
Fifty or sixty years ago, somebody broke through the mountain and caught the Grandmaster's eyes. He then learned some secret skills from the Grandmaster.
After the lucky guy leapt into heaven in one shot, everyone learned about Jasper Sun Mountain's issue. Soon, they realized that every two years, the weak stream blocking the Jasper Sun Mountain entrance would weaken, and they could enter or exit the mountain freely.