The jade bottle contained the Exquisite Bone Tempering Fluid he had won from Prince Duobo. It was immensely beneficial for tempering one's bones.
Among mortals, there was a saying: "Train your strength but not your bones, and all your efforts will come to nothing in old age." Bones were the levers that supported the fleshly body. If they were not tough enough, cultivating the physical body would not only bring little improvement—it might even damage the body, making the loss outweigh the gain.
The Exquisite Bone Tempering Fluid was precisely a treasure for refining bones. Having read through the history of the Universal Divine Realm, Nie Yun knew that this item was exceedingly important even in the Pu Tian Territory. Without sufficient status, one simply could not obtain it.
After acquiring it, he had been pursued relentlessly and had never had time to use it. Now that he finally had the opportunity, he could test its effects.
After setting up restrictions in the room, Nie Yun pulled out the stopper, opened his mouth, and swallowed it without the slightest hesitation.
Since it was something Prince Duobo had lost in a wager, someone of his status would certainly not tamper with it. Otherwise, if word got out, he would have no face left to show.
Glug, glug, glug, glug!
The instant the spiritual liquid entered his abdomen, a scorching sensation flowed throughout his body.
This stream of heat did not greatly benefit his fleshly body. In the blink of an eye, it seeped through the gaps in his bones, leaving every bone in his body numb and tingling.
This numbness differed from ordinary numbness. It made him itch unbearably, yet he could neither reach nor scratch it.
"This is tempering the bone marrow, increasing the density and strength of the bones..."