At this moment, Ren Feifan completely let loose!
Within this secure training room, under the protection of Han Chen and Ye Yuntian outside, Ren Feifan had no concerns to hold him back.
He poured almost all of his soul into the space inside the Demon Lord's Stone Coffin.
It was a dark, damp, and cold space.
Boundless void, boundless darkness.
Ren Feifan wanted to use his soul to wash every corner of this space. He wanted this space etched deeply with his mark.
"Buzzing..."
However, the Demon Lord's Stone Coffin was an ancient entity.
Facing the impact of Ren Feifan's soul, the Stone Coffin started to struggle and tremble rapidly.
Sounds of soft, angry trembling came, representing the struggle of the Stone Coffin.
Swoosh...
Whoosh...
Suddenly, within the space inside the Stone Coffin, a gale arose!
The fierce winds continuously battered against Ren Feifan's soul.
"Not good!"
This situation caused Ren Feifan's face to change.
