The testing device looked rather crude and didn't sport a high-tech appearance.
It was something akin to a blood pressure monitor, with a strap wrapped around the arm and a dial at the other end, where the needle moved from low to high, and the values increased accordingly.
"Meridian expansion, huh? That's somewhat interesting," Lu Xiao couldn't help but murmur.
Honestly, he had never seen such devices before.
Ever since he was young, he had followed his master everywhere, practicing and honing his skills.
There were no such things as Talent Values nor devices to test the expansion of meridians.
The teaching philosophy of his master was, if you can't do it, it means you haven't been pressured enough.
Anyway, Lu Xiao felt that being able to live up to this age was definitely a defiance of fate.
Every now and then, the old man would make him encounter life-and-death situations.