A week was plenty of time to prepare for a prison break, but for cultivation, it was far too short.
Lu Bai didn't waste any time. He opened the Body Tempering Method and began reading.
The preface was only two pages long.
After finishing it, Lu Bai had at least gained a basic understanding of this cultivation system.
In the worldview of the Deathmatch Arena, superhuman powerhouses were perfectly reasonable.
After all, everyone in this world had a dantian inside them. With the right method, it could produce Internal Energy.
Successfully producing Internal Energy meant stepping onto the path of a martial artist.
Unfortunately, the dantian couldn't be seen or touched. Its presence could only be sensed.
And sensation was an elusive thing. Everyone experienced it differently, with no standard way to measure it.
Some people could sense Internal Energy after just two or three days of training according to the Body Tempering Method.
Others might never get the hang of it in their entire lives, even with the most refined methods.
The first step demanded an exceptionally high level of talent. Countless people got stuck before they could even begin.
But once someone managed to produce Internal Energy, that changed everything.
Internal Energy wasn't just something you could use to increase your strength.
At that point, you could begin properly tempering your body.
The reason these cultivation methods were collectively called Body Tempering Methods was that Internal Energy could be used to refine a martial artist's body, improving their physical abilities in every way.
Once the body had been fully tempered with Internal Energy, withstanding bullets with one's bare flesh, like Brother Biao, would be no problem. Living two or three hundred years would be easy, too.
But was there a limit to how much Internal Energy could temper