Parasites are a pathetic species, they are strong but also weak, parasites cannot survive on their own, they can only cling to other creatures, when they are successfully parasitic, they will optimize the host's body, making this body stronger than the original.

The physical fitness of Martian cockroaches is generally at the wolf level, a few have reached the tiger level, and the strongest ones even have the physical strength of the ghost level.

There are also limitations to the object of parasitic beasts, when the physical strength of the host reaches the tiger level, the success probability of parasitism will be less than one percent, and it may even be shot to death at the moment of drilling into the skin.

The mother of the parasitic beast, in order to find the way of survival of the parasitic beast, while exploring humans, also observed other creatures, and when it discovered the powerful species of the Martian cockroach, its cockroach exploration experiment began.

The low roar of parasitic cockroaches resounded throughout the West 8th District, and the nearby cockroaches rushed out and rushed to the location of the parasitic cockroaches.

"Prepare for battle." Genos said with a solemn face.

Standing by the window without a license and patrolling around, hundreds of cockroaches surrounded them, and now they are embattled, and they can only buy time for the golden ball.

"Golden ball, don't stop the injection." Undocumented said.

Genos and Springbeard jumped down from the stairs, followed by Unwarranted, blowing snow upstairs to protect the safety of the Golden Ball.

The golden ball also changed his relaxed expression, and placed all the virus injections in his backpack on the ground, ejecting the injections one by one with an astonishing hand speed.

"Don't let the cockroaches go upstairs, unlicensed, spring-bearded, you lead all the cockroaches around you to the square." Genos said.

"Hmm." Undocumented return.

He probably knew what Genos was going to do, gather the cockroaches together, and then use the ultimate "incineration" to destroy them.

"This number is too much, at least 500, and there is a steady stream of cockroaches rushing towards here, and they can only hold out until the golden ball throws out all the injections." Undocumented secret passages.

Cockroaches surging from all directions, densely crowded on the street, and the golden ball shot injections downstairs without slowing down, and according to this rhythm, it would take another three or four minutes to shoot all the remaining injections.

At this moment, a large hole was suddenly blasted out of the ceiling of the eighth floor where the golden ball and the blowing snow were located, and a tall figure appeared in the dust, which was a cockroach with a more robust body.

"Not good." Undocumented and looked upstairs.

The sturdy cockroach, the cockroach didn't talk much, just came down from the ceiling, and rushed to the side of the golden ball like a wind, the golden ball turned around in shock, just when the cockroach's fist was about to hit him, blowing snow launched telekinesis, and blasted the cockroach with the wall outside the building.

The sturdy cockroach spread its wings in mid-air and flew swiftly to the roof of the opposite building, where it looked at the undocumented people with condescending and indifferent eyes.

"Oops." The golden ball exclaimed.

The blow of the snow just now, the needles that put the golden ball on the ground also blew down the stairs, and out of 200 injections, only 117 of the golden balls were shot, and the rest fell to pieces from the tall building.

"Unlicensed, the injections have been destroyed, and the 100 in your backpack are the last potions." The sound of a golden ball came from the undocumented communicator.

"How many shots did you shoot?" Unwarranted asked.

“117。”

"Beard, this way." Unwarranted shouted at Springbeard.

I saw Springbeard running desperately towards Unlicensed, and he was followed by fifty or sixty cockroaches, who had endured without a license and did not open the genetic lock, he was afraid that when the time came, he would lose his combat effectiveness and become everyone's oil bottle.

"To the square." After the unlicensed and bearded converged, at least more than a hundred and fifty cockroaches ran in the direction of Genos.

"Genos." Unwarranted yelled at Genos.

"Come to me." Genos's mechanical arm suddenly transforms, and the two arms combine to form a powerful flamethrower cannon, which can fire "incineration" when it is fully charged.

"Wait a minute, Genos, look." Unwarranted pointed to the hundreds of cockroaches in front of him.

Among the cockroaches that were lured by the undocumented and bearded, there was a sudden commotion, one after another began to twitch, and then violently attacked the surrounding kind.

"The virus worked." Undocumented said.

The infected guys in the cockroach pile frantically bit their kind, and for a while, the cockroach army didn't care about the three of them without a license, and the ghost-level cockroach on the rooftop swooped towards the unlicensed at a speed close to the speed of sound at this time.

Undocumented keenly sensed the danger coming, and in an instant, undocumented skin turned pale red, and the second order of the gene lock was opened.

"Incineration."

A pillar of flame light more than 5 meters wide sprayed towards the cockroach that flew in, and in an instant, the ghost-level cockroach turned into a charcoal cockroach and fell miserably to the ground.

"Damn, Genos, can you say it in advance before you zoom in." Unwarranted was startled by the sudden flames, and if he hadn't dodged quickly, his black and shiny hair would have been gone.

There are more and more cockroaches in the West 8th District, and the shopping mall is gradually surrounded by water, according to the speed of the spread of the virus, there is a 50% probability that these infected cockroaches will be suppressed by the newly rushed cockroaches.

"The genetic locks have been opened, and this is a ghost-level one that has also been killed, so you can't just retreat." Undocumented took out five metal boxes from his backpack, which contained virus agents, each box of 20 bottles.

"Beard, give this to the Golden Ball." Three boxes of potions were handed to the beard without a license.

"Genos, one box for each of us." He handed over the medicine without a license.

Genos didn't say much, nodded and took the potion, although he was the commander of this mission, he didn't feel that Unlicensed exceeded his authority, maybe because Unlicensed was Saitama's classmate, or maybe Genos also regarded him as a friend.

"The five-minute gene lock time, 48 seconds have passed now, and there are 3 minutes and 12 seconds left for the last minute to retreat." Without a license, he accurately calculates the time he can use.

Unlicensed took the injections and rushed towards the newly incoming cockroaches, and when the 20 injections were used up, he could retreat.

“1、2、3...7、8。” Shuttling through the cockroach colony without a license, inserting injections into the cockroach's abdomen, legs, and arms.

The 20 injections were quickly injected, and after a minute of virus attack, these 20 cockroaches would become "good comrades-in-arms" after the undocumented decision.

The golden ball upstairs also shot out all 60 injections without missing a single shot.

"Undocumented, retreat." Genos said in the communicator.

"Yes."

Goldball, Beard, and Blowing Snow also jumped down from the building, and the five of them headed northwest, on the outskirts where the helicopter was.

"Oops, it's time." On the way to retreat, the last minute of the gene lock is also time.

"Undocumented?" Seeing that the speed of undocumented is getting slower and slower, Blowing Snow asked worriedly.

"Exhausted." Undocumented said embarrassedly.

When Genos in front heard the undocumented words, he quickly turned around, ran to the unlicensed without saying a word, and carried him on his back.