Zhao Yuan saw the bloody 'sweat' drenching his body. However, he knew it was neither blood nor sweat, but the tainted essence from within him!
The first step of Marrow Cleansing was to expel these substances, making way for new, pure essence.
It was a perfect example of the saying, "Out with the old, in with the new."
As the tainted essence was expelled, waves of crushing pain assaulted every part of his body. Zhao Yuan felt as if his limbs, bones, and organs were being run over by a ten-thousand-ton steamroller, breaking and shattering inch by inch! Then, the scorching heat released by the Marrow Cleansing Pill incinerated it all until not even ash remained!
The agony he'd suffered while practicing the Four Saints Technique was nothing compared to this inhuman torture!
