After taking the rejuvenation pill, Xu Yi's condition recovered within a few seconds.
Then he resumed his killing spree.
Hundreds of swords are flying in the air, constantly harvesting the lives of insects.
There are fewer and fewer living bugs on the battlefield, and the supernatural warriors of the Seven Kills Army have exploded with stronger combat effectiveness.
Because victory is in sight.
On the city wall, laser weapons continuously fired lasers, killing insects one by one.
The battle lasted for three hours, and the last insect was killed by Xu Yi.
"The battle is over!"
Xu Yi looked at the corpses and flames on the ground and breathed a sigh of relief.
There are still some disabled bugs moving around, but the soldiers of the Seven Kills Army no longer have the energy to finish the attack.
They sat on the ground powerlessly, each of them eating mutant beasts to replenish their energy.
Even the members of the medical team were all exhausted, and they no longer had the energy to do anything.
Except for Xu Yi, everyone else had little strength left.
Therefore, the last-hit job was left to Xu Yi.
Xu Yi put the insect's body into his storage space while finishing his blows.
These bugs can be used as an energy source, replacing oil.
The scientific research center of the Seven Killing Army has successfully liquefied the corpses of insects. The liquefied effect is more powerful than gasoline and can be used as a new energy source.
Less than a third of the hundreds of thousands of insects were burned, and the rest can be collected.
With the corpses of these bugs, we can try to develop new missiles, and this bug corpse liquid can be used as propellant.
After cleaning up the battlefield, Xu Yi's storage space was filled to the brim.
Therefore, Xu Yi decisively returned to the city lord's palace, dumped all the corpses into the warehouse, and then Xu Yi returned to the outside of the city.
"Xu Yi, the second wave of bugs has entered the jungle area. They are hunting mutant beasts to collect brain beads and corpses."
As soon as Xu Yi arrived outside the city, he received the information from Ling Yue.
Apparently, Ling Yue entered the communication area of the Seven Killing Army.
Before, no news came back from Ling Yue.
Are you actually collecting brain beads?
Xu Yi frowned and said, "This is not good news. They must collect brain beads and corpses to hatch bugs."
"Even if it is not for hatching, it will affect the hatching. Xu Yi, is your battle over?" Ling Yue also agreed with Xu Yi's inference and felt that the Zerg must collect brain beads and mutant beasts in order to reproduce and survive. corpse.
"It's over. We have killed all the bugs and resolved this wave of bug crises. We just don't know when the next one will come." Xu Yi didn't have a relaxed expression on his face because he didn't know the next attack. When will it come again? I don’t know if the next bug will increase in strength.
There is no way to destroy the insect nest, and there is no way to relieve the insect crisis.
Ling Yue didn't speak anymore, but accelerated back to Xu Yi's side.
Looking at the devastation all over the ground, Ling Yue felt very heavy.
There was scorched earth everywhere, and many insect corpses were burning or smoking.
"Xu Yi, you go and rest, I will clean the battlefield." Ling Yue said directly.
"It's okay, I'm not tired, let's go together. It will take them a few hours to recover." As he said that, Xu Yi turned his head and glanced at the disabled and injured super warriors.
Everyone tried their best. If the number of Zerg was larger, many people might have died.
In general, the Seven Killing Army is still too weak, and the gap in level 3 and above supernatural warriors is too big.
It is still necessary to find ways to improve the strength of the Seven Killing Army. Only when they become stronger can they cope with more difficult situations.
How to improve?
There are two directions. One is to use your brain, which is simple and crude.
The other one is to cultivate a plant like Dragon Flame Vermilion Fruit that can improve strength, so that the soldiers of the Seven Killing Army can increase their strength after taking it.
Xu Yi is ready to develop in both directions.
With Ling Yue joining, the battlefield was quickly cleared.
The soldiers of the Seven Killers gradually regained some strength. Xu Yi got them back into the city and transported them back to the city lord's palace in a car.
The people in the command center have been keeping an eye on the insect nest and the outside of the city. Only when they are sure that the insect hordes will no longer attack the Steel City today will they be able to overcome this crisis.
After Xu Yi returned to the City Lord's Mansion, he and Ling Yue came to the command center.
"Commander, the bugs hunting mutant beasts have begun to return to the insect nest one after another. Do we need to send drones into the insect nest?" Xu Rui saw Xu Yi and Ling Yue appear and stepped forward to report decisively.
"You can try it. We still need to know more about the situation in the insect nest. Take some small ones that are not easy to be found." Xu Yi knew that insect eggs can increase strength, but there was no way to enter the insect nest.
Otherwise, the existence of the insect nest can definitely enhance the strength of the Seven Kills Army.
"Okay, we can use the Hummingbird drone." Xu Rui immediately selected a model.
Xu Yi nodded and agreed with Xu Rui's suggestion.
Then, the personnel responsible for drone control began to dispatch the Hummingbird drone and flew it out from an underground hangar near the insect nest.
The Seven Kills Army built many underground hangars outside the city and in some areas of Linxiang City to store many drones.
After all, it takes time to fly from inside the city to outside the city, and it takes even longer to fly to Linxiang City. Putting the drone's hangar in Linxiang City can shorten the time.
In this way, they can quickly use drones to investigate the situation outside the city.
A few minutes later, a drone that was half the size of a hummingbird appeared in the insect nest area.
As soon as they tried to enter, Xu Yi and the others saw lightning coming out of the insect nest and hitting the hummingbird drones.
Seeing this scene, Xu Yi and Ling Yue frowned.
"The insect nest actually has a defense mechanism, and it uses electric shock?" Ling Yue couldn't believe it.
"Perhaps, we have always underestimated its technological level. Perhaps, the Zerg also possesses advanced technology. Of course, it may also possess powers similar to the power of thunder." Xu Yi looked at the Hummingbird drone that disappeared from the screen. , couldn’t help but analyze.
Whether it is specific or not can only be known by entering the interior of the insect nest.
Outside, nothing can be observed at all.
"Stop trying, there's no need to waste the drone." Xu Yi stopped the test plan directly.
The number of drones is limited. Although they now have a certain production capacity, the output is very low. It is not easy to produce some drones, so there is no need to waste them here.
Xu Yi and Ling Yue observed for a while before preparing to leave the command center and go back to rest.
However, before they left the control center, they received a communication request from the military department.
