Chen Jing split his focus in two. One part remained alert to Su Lingyi's movements, while the other circulated his blood and qi, drawing in Earthly Fiend Fire-Element Qi to begin tempering his heart.
Though he was underground, close to the Yin River.
Earthly Fiend Five Elements Qi existed everywhere. At most, the water-element qi here was heavier, while the fire-element qi was weaker.
But when Chen Jing used fire-element qi to refine his blood, he refined it thread by thread, advancing step by step.
If he drew in too much fire-element qi at once, it would be no different from setting himself ablaze.
Moreover, with the water vapor of the underground Yin River suppressing it, the pain Chen Jing suffered while using Earthly Fiend qi to refine his heart was eased by a few degrees.
As time slowly passed, Chen Jing's entire body blazed as though engulfed in fire. He gradually refined the salamander meat in his stomach, while the proficiency of his Earthly Fiend Five Elements Blood-Refining Method ticked upward in an orderly, unhurried fashion.
Chen Jing endured the pain of fire-element blood refinement.
At the same time, he saw that after eating some salamander meat, Su Lingyi had silently gone to sit at the opposite corner of the stone cavern, focusing on refining it to heal her injuries.
Though the two were separated by more than ten zhang.
The moment either opened their eyes, they could see the other's figure clearly, leaving no room to hide or launch a sneak attack.
The stone cavern fell quiet again, filled only with the rushing roar of the underground river's waterfall.
More than an hour passed like this.
Chen Jing let out a long breath of scorching white vapor.
The proficiency of the Earthly Fiend Five Elements Blood-Refining Method had