Chapter: 3509
The almost unbearable pain started from the face. Before that, Zhang Han had already trained his limbs and torso, but at this moment, the whole body was moved by a single hair, and the severe pain made people feel suffocated.

"It's been a long time, hehehehehe..."

In such severe pain, Zhang Han actually laughed, and the sharpness that was usually hidden was lingering in his eyes.

As soon as he gritted his teeth, this refining process was accelerated.

Zilazila...

Chin, mouth, nose, eyes, forehead, top of head!

In just three hours, Zhang Han completed the training of the head cortex, which made Zhang Han look like a blood man.

To put it more vividly, the whole person seems to have been roasted.

"Cycle Undead Demon King Skill!"

"Nine cycles, magical powers are self-contained!"

Crash!

In Zhang Han's body, the gushing spiritual power is like a river. Zhang Han's brand-new meridian begins to run in a specific direction. Under the operation of the Immortal Demon King Art, an amazing energy forms in Zhang Han's cortex, making him His skin began to change color, from blood red to wisps of pale silver.

Starting from the feet, it has been spreading all over the body. After one circle of exercise, the breath on the skin became more intense, without the slightest stagnation, and the second circle started.

Zhang Han's breath became more and more calm, sitting on the spot, his body was motionless, as if he hadn't even breathed.

The third circle, the fourth circle, the fifth circle...

After the eighth circle of Zhang Han's kung fu, his aura became a little violent.

The fiery red covered Zhang Han's skin again, as if this time the refining effort had failed, and it was only one step away from success, but it failed.

The pain level of the skin reached its peak, surpassing all previous ones.

The cracks in the skin are completely invisible, because the whole person's skin seems to disappear.

And at this time, Zhang Han didn't have much spiritual power in his body, so he was physically and mentally exhausted.

If it was someone who didn't understand, then at this time, he would definitely panic, leading to the failure of refining, and the result would be a regression in cultivation, and if he was a little bit unlucky, he might lose half of his life.

"The last pass looks difficult, but I just happen to know a way..."

"Blood Fiend!"

Boom!

Suddenly Zhang Han's blood boiled, and the secret method made the demon's skin even more turbulent.

"Taiyi wood produces thunder!"

Click!

Small thunderbolts came out of Zhang Han's body and flickered on his skin, making Zhang Han feel very itchy, but the whole time was very short, about 90 seconds, the blood on the skin dissipated!

And the skin on his body was already close to silver.

The demon skin is made!