The City of Steel, the headquarters of the androids.

Since Dr. Groh captured the capital of the Earth Federation, he has killed all of humanity, leveled the entire city, and built a city of steel on its original site, showing his supremacy.

The city of steel is made entirely of metal, even the wide roads are made of metal, there are countless high-rise buildings, and the streets on the edge are covered with iron trees and silver flowers, which is full of strange beauty.

It's a pity that there are no human beings in the Steel City, not even a living thing, and it seems very lonely.

In the center of the city, there is a kilometer-high tall building that reaches up to the sky, and is the central building where Dr. Groh lives.

The central building is home to Dr. Gro's residence and laboratory, and is a metal fortress with cyborg guards.

Eighteen, with a sense of trepidation, made it to the top of the Central Building, where Dr. Gro's lab was located.

Since Dr. Gro obtained the Sealed Buu Dome from the ancient ruins half a year ago, the entire laboratory has been sealed, and no one has been able to enter the laboratory except for a limited number of auxiliary robots, and the 18th has not seen Dr. Gro himself for half a year.

Just five minutes ago, 18th was suddenly notified that Dr. Groh wanted to see her, and that he was going to see her immediately.

No. 17 pretended to attack the headquarters of the Resistance, but in fact went to this juncture with the Northern Thunder Alliance, Dr. Gro suddenly met with him, and No. 18 couldn't help but think that Dr. Gro might find out about her and her brother's small movements, and it was inevitable to speculate in his heart.

The time bomb in his body had not yet been defused, and No. 18 did not dare to resist Dr. Gro's orders, so he had to come to the laboratory head-on.

After half a year's absence, No. 18 found that Dr. Gro's laboratory had changed drastically, the originally neat experimental equipment was thrown everywhere in a chaotic manner, a large amount of experimental data was scattered on the ground, and the air was filled with strange and unpleasant smells.

In the middle of the laboratory is a white dome, with five tubes leading through the dome, and each tube is linked to a machine, and a faint fluorescence is transmitted into the egg.

Dr. Gro, with messy white hair, stood next to the Dome, holding a computer and working intently, and he didn't even see the 18th coming.

"Dr. Gro, do you have the right command?" Number 18 asked Dr. Groh respectfully.

Dr. Gro heard Eighteen's voice, froze for a moment, and then happily took her arm to a machine.

"This seal requires a lot of energy to unseal, you quickly hand over the energy in your body." Dr. Groh said with a weird grin.

No. 18 was horrified, but he didn't expect Dr. Groh to come for the energy in her body.

17 and 18 are special androids, half-human, half-machine, whose bodies have been modified by Dr. Groh and have placed an eternal energy module in their bodies, so that as long as the energy does not decay, they will not get tired or die.

But it can be seen that Dr. Groh means that in order to break Buu's seal and make her give energy, the No. 18 ghost suddenly bursts into danger.

"Dr. Groh's life, I'll die if I lose my energy." 18 grabbed Dr. Gro's arm and pleaded.

"I gave you and your brother's lives, so what's wrong with letting you give a little energy now." Dr. Groh flicked his arm and said fiercely, "Do you want to disobey my orders?"

Dr. Gro's eyes were gloomy with a hint of fierceness, and No. 18 shuddered involuntarily, she still remembered that there was a time bomb left by Dr. Gro in her body, and she couldn't afford the consequences of not obeying Dr. Gro's orders.

"Please, Doctor, if you can make me and my brother, why don't you make an eternal energy to break the seal."

"You know what?" Dr. Groh said angrily: "This seal is very strange, after half a year of research, I found that the only way to break the seal is pure bioenergy, in other words, only the energy in the human body can break the seal."

No. 18 exclaimed, "Doctor, I'm going to grab a few humans and transform them into androids for you." ”

For the sake of life, the 18th doesn't mind indiscriminately killing innocents.

"Do you think androids are that easy to build?" Dr. Groh said gloomily, "Not everyone is suitable for modification surgery, otherwise after so many years, why don't I increase the number of semi-modified people?"

No. 18 turned a bitter face, and found that he could not escape the tragic fate, and as soon as his heart was ruthless, he wanted to fight back, but it was a big deal to die with Dr. Gro.

As if to see the careful thinking of the 18th, Dr. Groh's temples moved, and the 18th fell to the ground as if he was electrocuted.

"Don't try to resist me, I can kill you with a single thought." Dr. Groh smirked, "Give you one last chance and put your hand on the machine next to you."

No. 18 finally returned to normal, and now she didn't dare to think about anything else, so she could only get up from the ground honestly, and put her hand on the tray of the machine as if she was fated.

As soon as No. 18's hand was placed, a steel needle appeared from the tray under her hand and pierced into the palm of her hand, and then No. 18 found that the energy in her body poured into the machine like a, and it couldn't be stopped.

The energy in No. 18's body was transmitted into the giant egg through the machine, and the giant egg trembled at first, but it quickly calmed down, and No. 18 also found that the machine was not absorbing her energy.

"Huh?" Groh was shocked and ran up to the machine, muttering to himself, "Why not, isn't it possible that the Dome needs biological energy?"

No matter how Dr. Groh operated the machine, the Dome didn't react at all, it was unusually quiet, and 18 finally breathed a sigh of relief, as long as he didn't die.

"Why?" The sudden change of events makes Dr. Groh almost crazy, and he pulls at his own hair while looking for the cause, and even pulls the hair out to reveal his head under the scalp.

More than a decade ago, Dr. Groh transformed himself into an android for the sake of immortality, and the transformation was even more complete than that of 17 and 18, retaining only the most important brain, and replacing everything else with machinery.

Dr. Groh pulls off his wig, revealing a human brain encased in a glass skull underneath.

At the tip of the 18th eye, it was found that Dr. Gro's brain had atrophied a lot, and there were some black spots under the cerebral cortex, which were obviously beginning to deteriorate.

"Why not." Dr. Groh suddenly burst into a frenzy, shattering the machine in front of him with a punch, and looking at Number 18 with red eyes.

"What the hell did I go wrong?"

Where does No. 18 know what is wrong, it's good that she can't die anyway.

"Doctor, breaking the seal is not something that happens overnight, you better calm down and study slowly!" 18 pretends to be relieved, but curses Dr. Groh that he will never succeed.

"No, I can't wait." Dr. Groh shouted, "I'm out of time, I'm out of time." ”

Dr. Groh kept repeating "I'm running out of time", looking like he was crazy.