The craziest upgrade system

Whoosh!

As Nie Yun loosened his fingertips, a sound of air tearing came from his fingertips.

Elementary archery.

An arrow was shot, and the dark arrow turned into a black light and shot up into the sky.

The tip of the arrow accurately penetrated into the wings of a blue-scaled eagle. As a miserable scream came out, it seemed to have lost power and fell straight from the sky.

A few breaths later, as the blue-scaled eagle landed, a notification sound finally came from the system.

【Ding!Congratulations to the host for killing the first-level demonic beast Green Scale Eagle, and gaining 100 experience points, 100 spiritual power points, and 100 points. 】

[Ding, congratulations to the host for obtaining the Feather of the Green Scaled Eagle. 】

Alas, no matter how small a fly is, it is still flesh, Nie Yun couldn't help but murmured.

Then he pressed his toes a little harder, jumped up a few times, and quickly shuttled through various obstacles. As if he was as light as a swallow, he crossed hundreds of meters and arrived at the body of the green-scaled eagle in a matter of seconds.

He stretched out his hand and pulled out the arrow from the Green Scaled Eagle's body, and put it into the space within his body.

"But it's okay to do this once or twice. It would be too troublesome if we had to recycle it like this every time."

With a thought, he glanced at the system panel.

Now the number of monsters he has killed has reached 56, including 34 first-order monsters, 22 second-order monsters, and no third-order monsters yet.

But this does not prevent Nie Yun from being happy now.

Because combined with the points gained from the green-scaled eagle he just killed, Nie Yun's points finally exceeded the [-] mark.

As the two of them went deeper, half a day later, they finally saw a pool of hot and cold water.

It’s Yin Yang Lake!

After a long time, Nie Yun came to this pool of water again.

The one who has the same feeling at this moment is definitely Hei Yan, but because of the system, he will subconsciously and selectively forget about Nie Yun's use of forced subjugation on him.

"Brother, what kind of place is this? The pool in front looks so strange."

Nie Feng said this abruptly from the side, which directly pulled Nie Yun back from his memories.

However, after carefully sensing it for a moment, Nie Yun also noticed something was wrong.

The two may have different strengths in attack, but they both have different shortcomings. The only thing in common is that the two Nie Yun brothers are deficient in investigation.

So even if I sense something is wrong at this moment, I don't know the specific situation, so I can only stay where I am and dare not act rashly.

At the same time, the black flame as thick as a water tank raised his triangular snake head, his eyes flashed around, and the snake letters in his mouth were constantly spitting out, collecting the surrounding smells in the air.

Suddenly, a sharp light flashed in the eyes of the black flame snake, and the blood vessels under the pitch-black scales quickly turned red like magma, as the temperature of the surrounding air soared sharply.

Black Flame suddenly opened his mouth big enough to swallow a large millstone, and sprayed out a red fire snake carrying countless heat waves towards an inconspicuous corner!

In an instant, everything the fire snake passed was ignited by high-temperature flames, and the fire spread rapidly to all directions.

Slowly, as all the surrounding obstructions burned, the flames became higher and higher, and gradually they had the potential to reach the sky.

However, the two of them did not let down their guard at all. They stared closely into the flames and held their weapons tightly, ready to deal with various emergencies at any time.

Nie Yun and Nie Feng lacked the ability to detect, and Black Flame did not belong to the category of detecting monsters, but at this moment they could only rely on Black Flame's innate perception.

The fire gradually grew larger, and a huge black shadow slowly appeared among the flames that reached the sky.

The black figure seemed to be immune to the flames with temperatures of several hundred degrees. It walked towards Nie Yun and the others step by step. Every time they landed, they could feel the vibrations coming from the ground beneath their feet.

Only when he was completely out of the center of the high-pitched fire did Nie Yun finally see clearly what this black shadow the size of a mountain was.

A giant four-legged lizard!

The fourth-level monster _____ Iron-backed Giant Monster Lizard!

The Giant Gila Monster is famous for its size and defense in the Monster Mountains. It is difficult for ordinary attacks to break through its scales. What is extremely inconsistent with its size is that the Giant Gila Monster is also surprisingly fast and aggressive. While it is extremely strong, it also contains poison in its mouth.

In the Demonic Beast Illustrated Book, there is a comment about the Iron-backed Giant Monster—a king-level existence among fourth-order monsters!

The fourth-level monsters benchmark against the human realm, which is also the martial spirit realm, which is a much higher realm than Nie Yun.

Even if it is Black Flame, its realm and strength are the fastest to recover, and it is still at the early stage of the third level at this moment.

The two of them and the snake now looked like a few-year-old baby meeting a fat man weighing hundreds of pounds in front of this giant lizard.

Visually, there was a sense of powerlessness coming over me.

Nie Yun's eyes moved and he whispered something to the other people.

Then the rest of them nodded slightly as if they understood.

The next moment, the two of them rushed towards the Iron-backed Giant Lizard in three directions. Nie Feng and Hei Yan were getting faster and faster, eager to rush in and fight to the death.

As for Nie Yun, he was also speeding up, but when he was halfway through, he suddenly turned around and ran straight towards Yin Yang Pond!

Even if the Ironback Giant Monster reacted at this moment, it would not be able to stop it.

But when Nie Yun arrived at the edge of the Yin-Yang Pond and squatted down, preparing to open up the space in his body and take in the entire Yin-Yang Pond, he suddenly discovered it.

There were many shallow strands of black liquid floating in the pond. . . . .

The pond water is polluted!

The purpose of Nie Yun's visit was simple. Because the volume of the space inside his body had expanded, he wanted to come over and collect the Yin Yang Pond water into the space within his body.

After all, how could a pond that could breed such a heaven-defying thing as the Yin-Yang Fruit be an ordinary thing?

Even if you don't talk about it, if you plant the rhizome of the yin-yang fruit again into the pond, there is hope that it will produce yin-yang fruit again.

The water of Yin Yang Pond alone is a rare treasure.

But now, the pond is filled with venom and has been completely polluted. Apart from the Iron-backed Giant Monster Lizard, no other creature can use this Yin-Yang Pond.

Obviously, all Nie Yun's fantasies were completely shattered at this moment with the arrival of these traces of venom.

Nie Yun stood up and looked at the Iron-backed Giant Monster Lizard that was being entangled by Black Flame and Nie Feng. Countless thoughts were tumbling in his mind.

After weighing the pros and cons, Nie Yun breathed a long sigh of relief and uttered three words.

"Kill him!"