ntire building began to shake, as if an earthquake had occurred!Then, Gu Kaiyuan bit his finger and dripped a drop of blood on the ground.In an instant, the blood was absorbed by the ground, followed...to his skin.Ding ding ding…………Two people attacked each other with the most primal and pure force.Each punch produced a sound like steel colliding.Sparks flew, and thunderous explosions erupted one aft...