Wang Yifan is very unhappy now, and he looks listless even when he gets up early in the morning.

The system upgrade function he dreamed of yesterday made him full of expectations, and the result was naturally as great as the expectation was as great as the disappointment.

The upgraded system may look very high, but it is useless. The two new features, the Biological Deduction function, are still greyed out and unusable.

As for storage...... Anyway, last night, Wang Yifan successfully packed the apple in the space, and the method used was to eat it! The space also has a name called stomach......

Now Wang Yifan has only one thought in his mind, 30 points of extraordinary material is really a loss, a blood loss!

So early in the morning, Wang Yifan didn't eat breakfast, so he ran towards Xingmengyuan, he wanted to go underground again, and he must make the money he lost yesterday again!

Under the gaze of Lao Niu, Wang Yifan repurchased his equipment, and then went down the sewer without hesitation.

The sewer was still dark, Wang Yifan turned on his headlamp and walked forward cautiously.

It didn't take long for the smell of blood in the air to become stronger, and the area in front of it was the site of yesterday's battle.

Only now it was so clean that there was nothing to prove that countless gray squirrels had died there, except for the smell of blood in the air.

Holding the shield in his left hand tightly, Wang Yifan was a little dignified. Obviously, after his death yesterday, there were other monsters here, and they licked the flesh and blood left on the ground.

I just don't know what kind of monster it is, and what the combat effectiveness is.

Wang Yifan walked forward cautiously, and then walked forward, but it was a place he had never set foot in, the environment here was complicated, the light was dark, and it could not be careless.

didn't go far, suddenly heard a voice in a fork in the road next to him, gently dimmed the headlamp, and took the opportunity to see a black lump of light that was squirming in his direction, and he didn't know what it was.

"Huh?"

Wang Yifan really didn't come out yet, after all, he hadn't read the encyclopedia in its entirety, and the light was so dim that he couldn't see it clearly.

However, in game terms, the sewers in this city are a low-level dungeon, and there must not be any dangerous monsters, but Wang Yifan is not afraid.

The monster he saw was about to crawl over, so he simply ambushed him, whatever he was, cut down an axe first!

"Poof!"

There was a soft sound, and he barely felt any obstacles, and he felt as if he was a piece of mud. And the lump of mud that was cut in half by Wang Yifan with an axe was really like mud, neither struggling nor screaming, and naturally became two halves.

If it weren't for Wang Yifan who had just watched it crawl over with his own eyes, I am afraid that he would not have been able to believe that he had really killed a monster.

"Found an unknown monster, do you absorb it? Transcendent matter +1!"

The two halves of the corpse on the ground were still wriggling, and if it weren't for the system's judgment, Wang Yifan wouldn't know that it was really dead.

I don't know what it is, but if it can increase supernatural matter, it's a good thing, isn't it?

"Absorb!"

casually agreed, but Wang Yifan found that this time was a little different from the past.

With the absorption of this corpse, there is one more thing in the empty storage space that I unlocked last night and there is no way to put anything!

"Huh, what's that?"

Wang Yifan was a little strange, and clicked on it and a line of introduction popped up: the gene fragment of an unknown monster can be used for biological recommendation!

Seeing such an introduction, Wang Yifan suddenly realized that the original biological recommendation function has been gray and cannot be used, is it because of the lack of necessary raw materials?

"Biological deduction!"

Seeing that this function can finally be used normally, Wang Yifan certainly wants to give it a try.

"The deduction of unknown biological genes, with a success rate of 37.2% in fusion with host genes, does it consume super-antimatter for deduction?"

“mmp！”

Wang Yifan said silently, and then chose no. Regarding the gene fusion potion, he also heard Meng Qianqiu say it.

This kind of thing is used to improve one's own combat effectiveness when breaking through at the same level, and this mud-like miscellaneous thing obviously has no combat effectiveness.

What's more, the deduction of the potion also needs to cost extraordinary substances, and the success rate is less than forty percent!

Speaking of which, this feature is really rubbish as expected!

Wang Yifan pursed his lips and gave up the idea of continuing to study the system, after all, now that he is in the sewer, it is better to be cautious.

Packed up your things and moved on. Wang Yifan did not choose a fork in the road, but kept walking along the straight road.

After all, although the new city is just a small city, the sewers are still well-connected and connected.

Wang Yifan is not a construction worker, and he has never seen the wiring map of the city's sewers.

He was really worried that if he accidentally couldn't find his way back, he might be lost in this endless darkness!

Although it is said that you can just find an exit and drill into it, but I am afraid that it is really difficult to explain that I climbed out and was seen by others in this way and was seen by others.

I walked straight along this road, and I didn't know how far, and I came across a total of three or five gray squirrels.

According to the introduction of the mythological encyclopedia, low-level monsters such as gray squirrels all live in groups, and it is normal to occasionally encounter hundreds of them together.

But Wang Yifan did get little after looking for a long time, which made him doubt the introduction book.

"The so-called letter is better than no book, the ancients did not deceive me!" he could only sigh like this.

In fact, it is not that the book is wrong, but that Wang Yifan came at the wrong time.

In the past two days, the snow outside has almost melted, and the monster rampage is nearing the end, so naturally those gray squirrels have all returned to their usual habits.

In addition, although it was pitch black in the sewers at this time, it was noon outside, and the sun was shining. And most of those monsters are nocturnal, so Wang Yifan is naturally not so easy to encounter.

After going around a few times, he got out of the sewer where he went down again.

Throwing all the equipment on his body there, Wang Yifan came to Xingmengyuan and told Meng Qianqiu about what he had encountered.

As a result, as soon as I entered the door, I saw Meng Qianqiu leaning behind the bar with a cheerful look.

"I said can you kid be okay and don't keep getting into the sewers, do you know that you have a smell on your body now? Hurry up and clean up, I still have to do business here!"