Chu city is built by the mountain, located in the majestic peak, because the mountain peak is steep in the south and gentle in the north, so the south of the city has become a passage to and from the outside world when it is cast, and the east, west and north are completely sealed, the defense is strict, and the birds are difficult.

Chucheng is divided into four districts, of which the northern district is the aristocratic district, which covers the widest area, has the best terrain, and has the most strong defense, which is the safest place in the whole city.

And Chu Xun's "home" is located in the north of the city, but because his parents died and he has not been able to awaken his abilities for a long time, his status in the family has also dropped again and again. At this moment, his so-called home is actually just a single room of less than ten square meters, although it is not called a home with four walls, but there are only a few pieces of furniture and electrical appliances, which can be said to be very simple.

Back at home, Chu Xun immediately locked the door, then carefully opened the wardrobe and took out a palm-sized metal box from it.

Seeing this blue metal box, a trace of excitement suddenly appeared on Chu Xun's face, and then he took a deep breath and opened the box. Suddenly, a soft blue light emanated from inside the box.

That's right, the box contained the ten standard crystal nuclei that Chu Xun had received this month. These crystal nuclei are only the size of ordinary coins, and the whole body is as transparent as blue crystal, and it exudes a soft light, which makes people feel very comfortable when they look at it.

These crystal nuclei are a combination of virus energy and life energy, but after being tempered by the organism itself and post-processing by high technology, these standard crystal nuclei are much milder than the original and easier to be absorbed by the human body. According to the memory in Chu Xun's mind, this standard crystal nucleus can not only strengthen the body of ordinary people, but also have the effect of strengthening the ability of the supernatural, which is extremely valuable.

An ordinary family, even if it is hard work for a year, it is difficult to earn a crystal nucleus, but as a descendant of the Chu family, Chu Xun can receive a minimum of ten standard crystal nuclei every month before the age of sixteen, which shows how big the gap between the nobles and commoners in Chu City is.

However, fortunately, in order to avoid family infighting exceeding the bottom line, the Law Department of the Chu family stipulates that the private territory of the nobles is sacrosanct, otherwise Chu Qing would not have to work hard to blackmail Chu Xun, but just break into his room and loot it.

"Is this the standard crystal nucleus, it's really beautiful......" Looking at the standard crystal nucleus emitting a soft blue light inside the box, Chu Xun couldn't help but exclaim. Such a beautiful crystal nucleus, even if it doesn't have that strange ability, I'm afraid it is enough to cause countless people to rob with this beautiful appearance......

"I don't know if this crystal nucleus is useful to me......" Suddenly, Chu Xun thought that his insect ability was completely activated by the Super Savior system, so could this crystal nucleus still work on himself?

Thinking of this, Chu Xun immediately took out a crystal nucleus, held it in his hand, and began to close his eyes and perceive it according to the method in his memory.

Airplanes!

Soon, the crystal nucleus in Chu Xun's hand began to tremble slightly, and there was a buzzing sound. Then the coin-sized crystal nucleus suddenly turned into a blue light and merged into Chu Xun's palm.

"Drop, the host is replenished with biological energy, the insect ability is enhanced, and the gene lock is opened by 10%."

As the blue light entered his body, Chu Xun only felt a warm current flowing through his body, and then finally integrated it into his mind, which made him feel refreshed and comfortable. At the same time, a cold voice suddenly sounded in his head, prompting him.

"Gene lock?" The prompt sound that suddenly appeared in his mind made Chu Xun frown slightly. Then, he simply didn't do anything, took a deep breath, took out all the crystal nuclei, and held them in the palm of his hand.

Suddenly, in a slight humming sound, soft blue light continued to light up from Chu Xun's hand. Soon, all the crystal nuclei disappeared without a trace, and the cold voice sounded in Chu Xun's mind again.

"Drop, the host is replenished with biological energy, the insect ability is enhanced, the ant gene is strengthened, and new gene locks are unlocked."

"Please note: until sufficient biological energy has been obtained and the body is strong enough, the host should not devour the third gene to avoid causing the collapse of the host's gene chain."

As the system prompt sounded, Chu Xun felt as if some shackles had been broken in his body, and a powerful force surged in his body, making him feel the urge to throw a punch and smash everything.

At the same time, a faint blue light also appeared on Chu Xun's body. Under the light of the blue light, his originally slender and thin body obviously became a lot stronger, although he was not still burly, but at least he was no longer as windy as before.

"The strength has become a lot stronger!" Chu Xun clenched his fists and felt that his strength seemed to have improved a lot, but how much he had improved still needed to be tested.

And in addition to becoming stronger, the so-called gene lock also attracted Chu Xun's attention. It seems that this insect ability can't be strengthened without restraint, otherwise his gene chain will completely collapse and become a monster that is not human or ghost.

Thankfully, this restriction is not impossible, and the only thing that is needed is to have enough crystal nuclei.

"That's right, if you want to become stronger, you have to pay a price, how can you get it for nothing." Shaking his head, a hint of excitement flashed in Chu Xun's eyes: "Next, we can devour a new insect gene, what kind of insect do you want to devour?" ”

Thinking of this, Chu Xun also began to think.

After the battle with Qingyi, Chu Xun had a considerable understanding of his strength. After devouring the ant gene, his muscles were already full of strength, coupled with the strengthening obtained from smelting the crystal nucleus this time, now if he attacked with all his strength, he could definitely easily kill a strong adult, and his strength should also reach about ten to fifteen times that of ordinary people, which was definitely enough for him now.

But what doesn't match the strength of his strong muscles is his current physical strength, and the relatively fragile bones even affect his strength output. Just like when he fought with Qingyi, although his strength was very strong, he killed Qingyi with one punch, but at the same time, his right arm was seriously damaged, and he could hardly fight again. And now that the strength has been improved again, the strength of the body has not changed significantly, which is obviously not balanced, and can even be said to be a little deformed.

And now his body's defense and reaction speed are also very poor, otherwise he wouldn't have been seriously injured by a dagger because he couldn't avoid Qingyi's attack.

"It looks like the next insect to devour is either fast or defensive." Chu Xun touched his chin, and then began to think about what suitable targets were suitable for devouring near Chu City.

Under the effect of the virus, the vast majority of creatures in this world have evolved or mutated, even if it is like the ant that Chu Xun devoured today, some of them have mutated and become more terrifying mutant ants, and only a very small part of them have survived and maintained their original state.

This is a bit similar to humans. It's just that a small number of human beings have undergone abnormal changes and have special abilities, and most of them are still ordinary.

And even the ants, which have survived for countless years, have undergone serious mutations, and other creatures are even more conceivable. Therefore, at this moment, in addition to the genetically modified organisms raised by humans, other natural organisms in the city are very rare, and insects are even rarer.

In other words, if Chu Xun wants to devour the right insect genes, then he can only leave the city and venture outside the city.

"Damn, wealth and danger are sought, fight!" After pondering for a moment, Chu Xun finally took a deep breath, clenched his fists, and made a decision.

It won't be long before the student assessment will be held, and with his current strength, he will be hit hard by dealing with a Qingyi, let alone fighting with other noble students. And once he can't get the first place in the student assessment, what awaits him is the end of obliteration. So instead of waiting for death with fear, it's better to fight, and even if you die, you won't regret it!

He's already died once anyway!

……

After resting at home for a night, Chu Xun left the house with some simple supplies and an ordinary alloy war knife, ready to leave the city.

Chucheng is a first-class city, although it is only the lowest-level city, but the scale is not comparable to those wild gathering places. With a permanent population of 300,000, Chucheng also covers an area of 10,000 square kilometers, making it arguably the largest human city in the vicinity.

The city of Chu was built in the middle of the mountains, and the city of Chu is also known as the city of solid stones because the nearby mountains were subjected to heavy bombardment during the cataclysm hundreds of years ago, which caused the rock structure to become extremely tight and hard. If you look down from the sky, you can find that Chu Cheng stands in a square in the mountains, the terrain in the east, west and north directions is extremely steep, difficult to climb, and is full of mine traps, unable to pass, only there is a flat road up the mountain in the south. The 10-meter-high walls are also made of solid large stones, which are easy to defend and difficult to attack, and the defense is extremely strong, so staying in the city is generally not dangerous.

But outside the city is different, there are not only all kinds of zombie creatures, mutated creatures, but also all kinds of other dangers, which can be described as dangerous. Therefore, in order to prevent the invasion of creatures outside the city, the defense inside Chu City can also be described as invulnerable. Not only are thousands of elite soldiers stationed on the city walls, towering with huge artillery, missiles, and automatic machine guns, but also two huge crystal nucleus energy cannons standing on each city wall. This kind of crystal nucleus energy cannon uses the biological energy in the crystal nucleus as an energy source, and it costs more than 1,000 crystal nuclei per shot, but it is worth the money and is extremely powerful, enough to destroy mountains and mountains.

In addition, Chu City only has a city gate located at the southern city wall, and the city gate is completely made of special alloys, and the defense is several times stronger than the city wall. Even if a third-order zombie does it, it will be difficult to damage it in the slightest.

Unless a big man arrives, or a caravan arrives every three months, the city gate will not be opened, so if Chu Xun wants to leave Chu City, he must be hoisted by the city guards from the ten-meter-high city wall by crane.

However, just when Chu Xun had just come to the southern city wall and was about to leave Chu City for hunting, unexpected trouble suddenly came.