The strong wind stirred - Gao Yi rushed to the back of the neck!

That moment.

The hood of the assault jacket rippled gently, and the hair was flying.

Angry eyes and ferocious eyes.

The hunting knife was raised.

"Tornado - destroy the parking lot!"

Pfft——! The light of the sword fell like a heavy rain!

Blood and flesh were flying all over the body, and the siren head howled in pain, echoing in the underground dome.

"checkmate!"

Locating the position of the cervical spine, Gao Yi twisted his waist, turned around and plunged the knife in hard, roaring with all his strength.

This time he tried his best and finally broke through the bone mass!

Click!

"Buzz——"

The siren head hummed in pain and slammed its back against the wall!

"Ten minutes." Gao Yi looked back.

Facing the gradually enlarging shadow, he looked indifferently.

【The Call of the Mountains】——Activate!

“Give the adaptable backpack safety features.”

"Airbag deployment!"

Putting on the hood of the assault jacket, Gao Yi pressed a button on the shoulder strap, and the adaptor's backpack glowed with a burst of green light, as if it had been given some kind of ability.

The entire backpack suddenly expanded like a balloon, firmly protecting Gao Yi inside.

boom!

The back of the siren head collided violently with the wall, and a loud noise was heard.

The protein hunting knife still inserted in the spine penetrated directly into the cervical spine under this huge force.

"Buzz!"

The sudden severe pain caused the nerves to tremble, and the siren's head froze. His huge body suddenly lost control and fell forward, like a mountain collapsing.

Wow——

Large pieces of stone fell with a crackle, and the siren head was covered in gravel, making a dull electric sound.

It tried to get up, but its efforts were in vain.

"Buzz..."

The hunting knife that was deeply embedded in the neck was constantly releasing heat energy, intensifying the damage to its nerves.

All echoes gradually returned to calm.

The dust has settled.

In the distance, a drone parked quietly.
Chapter completed!