Body Refining Breakthrough to Peak Fourth Rank!!

He casually cleared away the weeds and rubble inside, then stacked several boulders at the entrance for a bit of cover, creating a temporary place for secluded cultivation.

"Good."

Qin Yan surveyed the crude yet concealed cave with satisfaction, then sat down cross-legged.

"Now, I can begin my breakthrough."

He took a deep breath and calmed his mind.

His consciousness sank into his body, and the Undying Blood Demon Scripture suddenly began to circulate!

Within the Blood Demon Nest, the previously tranquil blood qi and demonic qi instantly surged!

"Whoosh—!!!"

Deep within the Blood Demon Nest, the blood-colored river that had lain dormant for so long suddenly churned!

Above its surface, blood waves rose to the heavens, their roar like thunder, as if they would swallow everything!

Meanwhile, the Demonic Qi Black Hole suspended beneath the Blood River began to spin madly as well!

"Whoosh, whoosh, whoosh—!!!"

The sound of its rotation was no longer an ordinary wind howl, but a deeper, more profound, eerie hum that seemed capable of devouring all things!

Like the most ancient black hole in the depths of the cosmos, it slowly turned, drawing in all surrounding light, heat, and even space itself into that endless abyss!

The Blood River and the Demonic Qi Black Hole manifested within the Blood Demon Nest at the same time!

One above and one below, one red and one black, they echoed each other while standing in opposition, forming a bizarre yet awe-inspiring sight!

Then—

Streams of incomparably pure demonic qi spilled out from the spinning Demonic Qi Black Hole;

Wisps of dense blood qi gushed from the churning Blood River!

Like two clearly distinct giant dragons, they slowly spread from the depths of the Blood Demon Nest through his meridians and into every limb, bone, and inch of