With another step forward, Zhang Yu had already arrived within a 300-meter range around the World Founding Furnace.
At this moment, everywhere Zhang Yu looked, there were layers upon layers of blazing flames.
Under the intense burning heat, the surrounding ground, rock layers, air... it all seemed to transform into a magnificent mist. With the constant stirring, surging, and explosion of the furnace's power, it was like a sea storm formed of liquid flames.
Zhang Yu knew that this kind of magic flames continuously condensing and burning various materials, ultimately transforming into a superheated material flow... In Kunxu, it is classified as one of the 36 types of Gang Qi, known as Upper Yang Qi.
In his own view, this substance resembled what Earth calls plasma, yet it contains the unique Immortal Dao Elements of Kunxu, making it different.
The 300 meters surrounding the World Founding Furnace were entirely enveloped by layer upon layer of Upper Yang Qi.
