Bronze skin wasn't the only skill that met the evolutionary requirements, and Bai Ze clearly remembered that the soul record told him that he had two skills that could be upgraded to the next level, or even to the next stage, depending on whether the skill could be upgraded or not. Whether it is at the highest level.

Bai Ze searched for his skills and found that the next skill was actually a health increase, and another unclassified passive skill.

【Evolution Requirements】

Health Up (Uncategorized Passive Skill) Level 3 ----> Level 4

[Nature +100 Health: Complete]

[Soul Stone: 1/1]

Bai Ze did not hesitate and evolved his health to a new level. He didn't stop though, and after checking the skills, he found that he had the materials he needed to evolve his skills again, and they met the requirements perfectly.

[Health Up (Uncategorized Passive Skill) Level 4---->5]

[Nature +120 Health: Complete]

[Soul Stone: 3/3]

Bai Ze looked at the evolution requirements and pointed out puzzledly: "How can this be? These requirements are a bit higher than those of the Evolved Bronze Skin. ”

"Different skills, different requirements." Linglong reminded him in a nonchalant voice. "Although they are both skills that passively affect your attributes, they are two different skills, and the final effect is completely different."

"Really." Bai Ze nodded and accepted the evolutionary process.

Bai Ze could clearly feel that after the skill was upgraded, his entire body seemed to have been invisibly improved, and even the air that entered his body seemed to have been purified a little.

The runes engraved in the depths of his soul were more vivid and clear than ever, slowly glowing with a faint pale green light.

[Health Increase (Uncategorized Passive Skill) Level 5: Permanently increases Health by 60]

Bai Ze casually glanced at the skill and roughly understood the evolution requirements. After all, it would be sad and lamentable, if he ended up dying because he didn't know how and when to increase his strength. Even if he died, he could not forgive himself.

Everything was fine in the beginning, some skills required odd or complex, and others were relatively simple. However, when Bai Ze saw the evolution requirements of a skill, his eyes almost fell.

【Special Forces (Uncategorized Passive Skill) Level 5 - Evolution Requirements】

[Kill Unevolved Enemies: 5000/5000]

[Kill 1st Tier Enemies: 15/100]

[Kill 2nd Tier Enemy: 0/10]

[3rd Order Soul Stone: 0/1]

Bai Ze: "......"

Linglong: "......"

...

The room was as silent as death, as if it were eternal. The silence was so terrifying that the crackling of flames burning above the mutant forest in the distance could still be heard.

After being silent for a long time, Bai Ze asked softly, "What's going on?" ”

His voice was soft, as gentle as a spring breeze. However, if it is in front of outsiders, whether it is so calm or not, only he knows.

Linglong cleared her throat lightly and replied calmly, "As I said, each skill upgrade requires different requirements. Some skills may require simpler as there are several upgrades ahead and the difficulty slowly increases. But there are also some skills that are much more difficult to evolve. ”

After an awkward silence, Bai Ze sighed, shook his head, and stood up to stretch his body.

The first condition has been completed, and the second condition is simpler, because he has strength, but where to find so many first-order monsters?

As for the second order, Bai Ze didn't dare to say that with his current strength, he could kill the enemy of that level. But he had to kill 10 to complete the third requirement? To make matters worse, he even needed a third-order soul stone.

With his current strength, a third-order enemy could kill him with a single finger. But even if his fate hung by a thread, how many chances could he have to get the soul stone?

"You don't have to worry too much." Linglong stood up and walked past him. Looking out the window, he said slowly: "It has been less than two weeks since the soul record arrived in this world, you will have time to achieve different goals, and when the mana of the world begins to evolve, the strength of your enemies will increase accordingly, so that you can hunt at your leisure." ”

"Hahaha...... Should I be happy? Bai Ze chuckled, shook his head, and walked towards the exit, "Forget it, Linglong, I'm only doing what I can now, after all, whether I can survive until tomorrow is a question." ”

……

The remaining two floors of the library were emptied, and all the zombie corpses were moved upstairs, then locked in several rooms, with the doors firmly locked.

As the sun set and night fell, the survivors of the First Order Beast meat returned to the Library, where they would stay for the time being.

Because the crimson flame was the flame of the third-order active skill, even after several hours, it still burned very strongly. The mutated forest, which has been plagued by mana due to the existence of mana embryos, is using mana to resist the flames, but it is only a matter of time before the entire forest is completely reduced to ashes.

As long as the fire burns, there is no way for them to leave the university. However, the atmosphere at the moment is very lively.

The eyes of those who worked hard lit up as they watched as the flesh of the flame beetle was cooked and swallowed silently.

As a reward, the team leader agreed to let them eat as much meat as they wanted, which motivated them to work harder and be more excited. After all, first-order meat can strengthen the body and provide attribute bonuses, which is also the information that Wu Yijun deliberately spread among the survivors, making them more willing to contribute.

Praise for the four main leaders can be heard in every corner of the main floor. The windows were sealed with large wooden bookcases, and the electric lights that were still on were shining.

Thanks to the efforts of the Evolution Warriors, all living beings within a radius of several kilometers were wiped out. Therefore, they don't have to be afraid of zombies suddenly breaking in and threatening their lives.

This is undoubtedly a big improvement over the cramped living environment in a gymnasium.

Some people are silently happy, and some are still a little dissatisfied with the different treatment; Bai Ze, Shangguan Bingxue, Chen He, Liang Peng, and Wu Yijun were in a separate room on the second floor, discussing the next plan of action until the red flame was finally extinguished.

What's more, the current Wu Yijun is no longer what he used to be.