The True Immortal Realm's boundary wall was rather special. It consisted of three layers: the Azure Nether Domain closest to the ground, followed by the Heavenly Wind Domain, and finally the Outer Heaven Domain.
The Azure Nether Domain was the azure sky spoken of by mortals. Though it lay within the Immortal World, it contained not the slightest trace of Heaven and Earth Spiritual Qi.
Cultivators entering it were like fish leaving a river. They would immediately feel extremely weak and uncomfortable, and staying too long would even damage their vital essence.
The Heavenly Wind Domain above the Azure Nether Domain was even more dangerous. It was filled with the terrifyingly powerful Nine Heavens Gāng Wind, and only Da Luo Cultivators could force their way through it.
Although Luo Hong was currently located in the Outer Heaven Domain, he was close to the edge of the Heavenly Wind Domain. With a casual sweep of his gaze, he saw that the space below was filled with grayish-black storms, rolling in wave after wave and producing piercing howls.
Focusing his gaze, Luo Hong spotted thin black lines within those gray-black storms. Wherever they passed, they easily tore open rifts in the void.
"The power of this Black Chalk Wind is truly terrifying. Pity my cultivation is insufficient right now, or I would definitely seize this chance to collect some!"
Black Chalk Wind was not recorded in ordinary texts. Luo Hong had only recognized it because he possessed memories from the original timeline.
This wind was a terrifying immortal wind born after the endless Nine Heavens Gāng Wind in the Heavenly Wind Domain had condensed for tens of millions of years.
It was said that Wind Breaking Beads refined from Black Chalk Wind possessed immense power. Even if a Da Luo cultivator took