Not right. Ye Mo immediately remembered that Lu Zhengqun hid the world tree at Luo Yue continent. Why did Kai Mi seal the other cultivation realm's immortal ascension tunnel?
Kai Mi was cunning and without Ye Mo needed to ask, he said, "If only Luo Yue cultivation realm was prevented from immortal ascension and people noticed, perhaps they would soon be able to find out about the world tree. I took Lu Zhengqun to activate the ancient immortal ascension restriction formation, allowing countless cultivation realms to be unable to immortal ascend. That way, no one would be able to find their way to Luo Yue continent."
"The immortal realm has an immortal ascension restriction formation?" Ye Mo asked in confusion.
Kai Mi nodded. "That's right, this formation is to restrict the cultivators ascending to the immortal realm, since most immortal ascension cultivators are extremely talented."