The zombies of Hengshuo World have the ability to reproduce themselves!

These zombies killed by Yu Fei were all split from zombies with splitting abilities!

Splinter zombies are weak, but they have terrifying growth abilities. They rely on sucking zombie viruses or devouring other living creatures to obtain energy, and when they grow to a certain extent, they will split themselves into two, becoming two zombies! Split zombies only split during the day, and can split at least 20 times in a day!

At least half of these zombies killed by Yu Fei were split zombies with splitting abilities!

After getting this information, Yu Fei only felt his scalp tingle.

The black viscous liquid he found when he dissected the zombie blood vessels just now was a rich zombie virus! They contain strange energies that can provide a constant supply of energy for zombies!

"How can the zombie virus have such an effect?" Yu Fei couldn't help but be shocked, and at the same time realized that it would be perfect if he could absorb the zombie virus and cultivate without becoming a zombie!

Sell zombie corpses to the system, but I didn't expect the system, which has always swallowed nothing, not to accept it this time!

"This zombie is so poisonous!"

Yu Fei couldn't help but be full of disgust for zombies, and he didn't even want the system, so you can imagine how dirty and useless it was.

Outside Gensokyo, the streets are full of zombies, they move aimlessly and randomly, and some of them remain silent and motionless.

Just observing with the naked eye, Yu Fei couldn't see the level of these zombies at all, they basically all looked the same.

"Looks like I'm going to have to get a probe ability, to be able to see their rank and attributes, etc."

Yu Fei's mind turned and he thought of a good way.

For useless Tier 0 zombies, Yu Fei has the idea of hunting them to gain proficiency for 'Bow and Crossbow Mastery' and 'Knife Weapon Mastery', but what matters now is to hunt Tier 1 zombies first, get Tier 1 zombie crystal nuclei to pay off the arrears of the system, and then buy antibody serum.

With a quick idea, Yu Fei surrounded the nearest zombie in Gensokyo, and then used his weakness and sluggishness to make it unable to move. Then Yu Fei began to formulate rules to let his eyes see the level and attribute information of zombies.

As soon as the rules were formulated, it only took a few seconds for Yu Fei to know the strength information of this zombie in his mind.

[Normal Zombie]:

Strength: Tier 0 (weak).

The rules can be used, Yu Fei slashes this zombie with a knife, and then opens the system panel to check his attributes to see if he has obtained new abilities.

[Detection Lv0 (1/10)] (↑ New): Your eyes are desperate to see the information of the target you want to know, and you are trying to awaken your detection ability. Gain 1 proficiency per 1 probe used.

Seeing that he had obtained the ability to 'probe', Yu Fei couldn't help but smile, and sure enough, his body knew him best. Yu Fei suddenly found that after having Gensokyo, he could have any abilities he wanted, it was just whether he could have the energy to upgrade these abilities and become stronger!

"There is no longer much ability in refinement!"

Yu Fei had a kind of realization that now he had passed the stage of lack of ability, and what he needed in the future was a variety of high-level and powerful abilities, rather than a group of Lv1-level abilities.

[Poison Antibody Lv1 (2/100)] (↑ Upgrade): Gain passive ability: When attacked by toxin, there is a 1% chance to gain weak immunity, which can be triggered once every 10 minutes. Passive ability proficiency is increased adaptively for each trigger. Increases proficiency by 1 for each toxin attack, and only triggers once every 10 minutes for the same toxin.

After glancing at the other abilities, Yu Fei found that the 'Toxic Antibody' had been upgraded, but it had been in the Truth Township for too long, resulting in a somewhat low proficiency in its acquisition. But it's not a big deal, it's not just the zombie virus that can make it gain proficiency, it's the time and opportunity to level it up.

Yu Fei drew a scoop according to the gourd, and pulled the zombies into Genshkyo to investigate them, but in just a few minutes, the 'exploration' was successfully upgraded!

[Detection Lv1 (0/100)] (↑ Upgrade): You have awakened the Exploration Ability and obtained the Active Ability: Consume energy to detect strange creatures, and you have a 50% chance of seeing the target level no higher than your own two levels. Strengthened by the passive ability of "Ku Ding Jie Niu", you can obtain passive ability: For dissected creatures, you can easily identify their level strength, attribute weaknesses, and other information. Increases proficiency by 1 for each active ability used for probing, and adaptive acquisition of proficiency with passive ability.

'Exploration' is gorgeously upgraded, but I didn't expect it to interact with the ability of 'Cu Ding to solve the cow'.

Now, Yu Fei no longer has to pull zombies into Gensokyo to identify their level information.

With a sweep of the eyes, all the information of the zombies is clear, and their level can no longer be hidden from Yu Fei's eyes!

"0 order, 0 order, why are they all 0 order?"

Yu Fei looked at it, almost all of them were Tier 0 zombies, and he couldn't help but feel lost.

He controlled Gensokyo and walked into the distance, and as he left, the zombies that were killed were scattered, but the zombies next to him didn't seem to see it, and they didn't react at all. It was only after a long time that a strange zombie came from a distance.

This zombie is not only tall, but also strong, although the skin of the whole body is still grayish-white, but it is very firm, with bulging muscles.

This zombie just stood in the pile of zombie corpses, and these dead zombies actually gathered on the zombie body under the attraction of a strange force, and then slowly merged into the body of this zombie like a liquid!

At this time, Yu Fei had already walked far away and did not see this scene, otherwise he would have seen that this zombie was no longer level 0.

……

"Hey, Tier 1 zombies!"

After leaving this square, Yu Fei saw the first Rank 1 zombie.

This Tier 1 zombie is no different from a Tier 0 zombie, except that its arms are a bit peculiar. Its arms are no longer hands, but two bone knives!

Draw the bow and shoot the arrow, all in one go. This living Tier 1 zombie died before he knew what had happened.

Yu Fei walked forward quickly, pulled it into Gensokyo, and began to dissect it.

This zombie's hand knife is very sharp, but unfortunately it is still gray quality, and it is not worth collecting by Yu Fei, but it can be sold to the system because it has value and can be exchanged for 23 survival coins!

Gathering sand into a tower and gathering armpits into a fur, Yu Fei did not dislike the lack of 23 survival coins, and was very happy to exchange them to the system.

After a few moments, Yu Fei successfully dissected the zombie and found a black diamond-shaped crystal nucleus the size of a mung bean in its brain.

Place it on the system and get its properties very quickly.

[Zombie Crystal Nucleus]:

Quality: Gray (Tier 1).

Notes: It contains a strange energy that can be used to refine the zombie virus antibody serum.

"Does the system still need to use it to refine antibody serum?"

Yu Fei couldn't figure it out, but he was very happy to know that every Tier 1 zombie corpse had a zombie crystal nucleus inside!