Ordinary low-level modified people, because the genes in the body are very unstable, there is a possibility of collapse at any time, so they need to inject or take a drug called "stability reagent" for a long time, especially after fierce battles and wanton use of transformation ability, they must use a large amount of stability maintenance agent to restore the body to normal state, but despite this, every battle is an irreparable consumption for the body of the transformed person, and their body is also moving towards the abyss of collapse step by step- The average life expectancy of low-level reformed people is basically over 30 years old, and the one who lives the longest is not more than 45 years old.

And there is a kind of high-level modified people, their own bodies can perfectly fit the new genetic sequence after modification, although these people have the power of modified people, but in normal times, they look no different from ordinary people.

The higher-order modified humans are infinitely close to the concept of "fully artificial evolutionary", which has driven countless scientists crazy.

High-level modifiers do not need to be injected with any "stability maintenance agent" at regular intervals, on the contrary, in order to fully activate the power hidden in the body, they will also inject a "catalyst" when they are about to face high-intensity battles.

If this catalyst is injected into a low-level modified, the low-level modifier will die of genetic collapse within a minute, a situation that scientists call "genetic outburst death".

But if the catalyst is injected into the body of the high-level modified human, although their genes will also enter a state of rampage, they will not cross the edge line of collapse, which is the most terrifying thing about the high-level modified people - they can maximize their abilities under the boundary of near death.

"Shhh...... It seems that you still know a lot about transforming people......" Cheng Mu's voice had become very hoarse, and the uniform on her body had almost completely fallen off, but Qi Lin could no longer see that beautiful body - a body of pitch-black scales drilled out from under Cheng Mu's skin, covering all the vital parts of her body.

Where there are no scales, the original soft skin has disappeared, and has been replaced by a hard and angular stratum corneum.

The nails at the ends of the limbs all fell off, and the sharp phalanges broke through the muscles, forming a twenty-centimeter-long bone claw, and at the end of the bone claw, there were also tiny barbs - such a claw, with a slight stroke, can tear a large piece of flesh from a person's body.

Qi Lin suddenly felt that the current Cheng Mu was a bit like the monster he and Chen He encountered in the abandoned subway tunnel, except for the head, of course.

Although Cheng Mu's head did not turn into the kind of spiral drill full of teeth, the black scales still wrapped her face, revealing only her eyes, nostrils, and mouth on the outside.

"There's still a pair of horns, a pair of wings, and a tail, and it's about the same as the kind of demon described in it." Qi Lin said.

The demon Qi Lin is talking about is not the kind of succubus who lives by squeezing some kind of white liquid from men, but the most ferocious and violent creature under Satan in the mythical story, the vanguard of the Hell Legion - at this moment, Cheng Mu no longer sees the characteristics of being a woman at all, the original plump chest has become a solid chest muscle, and the slender waist and limbs have suddenly thickened several times.

"To be honest, I also feel like I'm a demon." Cheng Mu said, the claws on his hands gently rhythmic.

"Is this your true form of fighting? It's a pity that such a beautiful girl has become like this. Qi Lin shook his head slowly.

"If it doesn't turn out like this...... I'm already dead......" Cheng Mu suddenly lost interest in the conversation, screamed, and rushed straight at Qi Lin at a speed several times faster than before!

"So fast!"

Qi Lin hurriedly jumped backwards, but his chest was still touched a little by Cheng Mu's claws, the crusty motorcycle jacket was torn to shreds like pieces of paper, and three shallow blood marks appeared on Qi Lin's chest.

Under this "demon form", Cheng Mu's movements could no longer be treated with human eyes, only to see her knees suddenly bent in reverse, the forward momentum stopped instantly, her arms quickly retracted, and the pair of sharp claws appeared in front of Qi Lin again, heading straight for Qi Lin's throat.

"Thorn-"

Qi Lin raised the submachine gun in front of him, Cheng Mu's claws easily cut the metal barrel into several pieces, taking advantage of this gap, Qi Lin retreated two steps again, narrowly avoiding Cheng Mu's pursuit.

If Qi Lin had the fifth-level strength in the "Wasteland Survival Code", it might not take much effort to deal with Cheng Mu in the "Demon Form", but the problem was that it was in the real world now, although Qi Lin also had the "Concentrated Energy Vortex" that was almost equivalent to the plug-in, but he had no way to get so many pure energy crystals that could be absorbed by him.

Cheng Mu in the "Demon Form", in terms of speed, strength and physical strength, I am afraid that he is already equivalent to an evolutionary at the peak of the third level, infinitely close to the level of the fourth level, but when it comes to recovery ability, even compared with the fifth level Qi Lin in the game, Cheng Mu is not too much at all.

Cheng Mu missed the blow and immediately bullied forward, and in the face of such a ferocious attack, Qi Lin had to retreat again and again, and soon, he approached the edge of the roof.

Can't go back anymore! Otherwise, even if you don't fall, if you are just in a marginal position, you will be strafed by the soldiers of the internal guard forces below, Cheng Mu opened the "demon form" without fear of the possibility of accidental injury, and the soldiers under her must know this, even if the two are in a state of entanglement, those soldiers will not hesitate to pull the trigger.

"Damn...... I thought that a few second-level evolutionaries under Cheng Su would survive, but who knew that there were still nearly fourth-level transformers......

Qi Lin secretly complained in his heart, lowered his head, and dodged a sweep again, but the backpack behind him was torn by sharp claws, and the contents of the backpack fell to the ground crackling.

Qi Lin reached out and picked up a fallen can and smashed it at Cheng Mu, who subconsciously crossed his arms in front of his chest - the label on the surface of the black and slimy metal can had been completely pasted, and at first glance, it looked like a grenade.

The can smashed on Cheng Mu's arms, and she realized that she had been deceived by Qi Lin, and taking advantage of this rare opportunity, Qi Lin finally pulled the distance between the two sides to ten meters away again.

More than three minutes have passed since the two started fighting, Cheng Mu is still almost in a full state now, while Qi Lin is covered with open wounds, although he has the ability to recover quickly, but such wounds are not recoverable in a while.

The worst thing is that along with the blood flowing from the wound, there is also a lot of physical strength.

The guns and ammunition had already been left behind, and Qi Lin's only remaining weapon was the military dagger that was only ten centimeters long, and there was a hole at the tip of the dagger - it was a trace left in a collision with Cheng Mu's bone claws.