Fei applied paste in his body and sat down. Then, he ran Energy Gathering Art to gather energy around him. He also activates his spiritual roots, but mainly his Stone Body Condensation Art was running. When spiritual energy entered his skin, it spread throughout his body and began to accumulate over the paste.
The spiritual energy began to boil the paste, turning it into a strange vapor. These vapors began to enter his cells, slowly covering every part of the cell. This caused a strange transformation of these cells. They began to vibrate, and with a continuous flow of vapor, they began to get stronger.
Strange enough, they were heating up because of the hot vapor; soon the heat began to turn those cells into something more concrete. Though it was Stone Skin, it only means as a reference, it doesn't mean his skin will turn to stone. It rather means, his skin will be tough as a stone.
