Why are all of them passive skills?

Ye Jing killed only one demon cat and collected only a little bit of blood, and he didn't know if this little bit of blood could be combined into a potion.

Ye Jing turned on the [Synthesis] function in the furnace, and the purple flames in the furnace burned slowly. The flames were very hot, and Ye Jing's face turned purple.

Then, he took out the crystal bottle containing purple blood, paused for a moment, and threw it into the furnace together with the crystal bottle.

Similarly, synthesis and refining do not only have a single raw material, but also auxiliary materials. After thinking about it, Ye Jing took out the magic core of the demon cat and threw it in with one hand.

Ye Jing didn't know what materials were needed to refine the potion. He had always wanted to learn it before, but he didn't have time. But now, he didn't have time to think about anything else.

So, he turned the storage bracelet over and threw all the medicinal materials in it into it.

The purple flames burned fiercely, and all the materials turned into energy.

[Synthesis successful, unknown potion*3 obtained]

It's done!

Among all the functions in his furnace, [Synthesis] is the most energy-saving. It doesn't cost any other energy to use it once. It's not like other functions, which cost thousands or tens of thousands of spirit stones at any time. He even feels sorry for using them.

Ye Jing took the three bottles of potion out of the furnace and checked them.

[Unknown potion]: It is made from the blood and magic core of a certain spiritual monster, mixed with low-grade medicinal materials. It slightly increases the strength of the spirit and slightly increases the strength of the soul. The effect decreases after repeated use.

Slightly increase the strength of the spirit? Slightly increase the strength of the soul?

What is the value of this slightly?

Ye Jing was speechless. Although it was a potion that he picked up for free, this "slightly" really made his head confused.

"Oh, forget it, it's all picked up for free anyway, who cares, it's better if it's stronger."

Ye Jing didn't care about the reminder that the effect would decrease after repeated use, and directly opened all three bottles of potion, raised his head and drank it in one breath.

A little fishy, ​​a little bitter.

Ye Jing felt his mouth dry and bitter. The medicine flowed into his body through his mouth and melted in an instant. It flowed from bottom to top and into the underground palace of his head.

Here it comes!

Ye Jing's heart was shocked. All the distracting thoughts in his brain seemed to be cleared. He became clear and bright instantly. His turbid spirit and soul suddenly became much cleaner, and his nerves also expanded.

This medicine is much milder than the one called "Alice". After taking it, there is no feeling of mental tearing. It feels light and comfortable.

This medicine is so mild

About ten minutes later, the effect of the medicine wore off. Ye Jing slowly opened his eyes. A ray of light flashed from his eyes. The light penetrated several meters away and shot directly at the door.

"Huh!"

Ye Jing spit out a breath of spirit from his mouth. He felt the strength of the spiritual sea. Three bottles increased the strength by about 10%.

Not bad.

Even the soul has become much more solid.

Ye Jing already felt that his physical spirituality had been perfected, and the spiritual energy in his body had filled his whole body. Next, he would prepare to break through to the Underground Palace Realm.

He planned to start seclusion after upgrading the furnace, and strive to break through to the Underground Palace Realm before the reference, so that he could catch up with the cultivation progress of some students.

Since he came to the Demon City, his horizons have been opened. Except for Gray, who was unlearned, all the peers he met have reached the Underground Palace Realm. Although their strength is not strong, the realm of practitioners is always considered.

Even he has to save face. When he thought about the reference, the classmates and students he met were one level higher than him, and he felt uncomfortable.

Hurry up, there is not much time left before the Demon Academy exam.

Ye Jing gritted his teeth, took out tens of thousands of spiritual stones from the bracelet, and exchanged them into the furnace. When the spiritual stones turned into a long river of spiritual energy and poured into the furnace, his heart was bleeding.

This is all hard-earned money!

Don't let me down!

As the spiritual energy poured into the furnace, the energy bar below the furnace began to rise at a rapid speed, and it was full in the blink of an eye.

[Furnace energy upgrade is full, do you want to upgrade?]

[Yes]

After Ye Jing responded, the furnace began to rotate violently, humming.

This vibration lasted for more than ten minutes before slowly stopping.

[Furnace upgrade completed, new functions unlocked]

When the furnace was upgraded, the energy bar that was originally filled with spiritual energy was instantly emptied and returned to zero. If you want to upgrade the furnace again, you have to continue to inject spiritual energy.

Ye Jing looked at the empty energy bar, pursed his lips, tried it with some sadness, and carefully threw another 10,000 spiritual stones into the furnace.

Then he saw the energy bar below the furnace moved slightly, just a little bit.

How much is this?

One percent? 0.5 percent?

Oh my God!

Ye Jing's heart was trembling. If he wanted to upgrade the furnace again, wouldn't it cost millions of spiritual stones?

Damn it, this furnace is probably dead, don't even think about upgrading it again in this lifetime!

Ye Jing cursed inwardly a few times before checking the new functions unlocked by the furnace.

This is the fourth function after [Extract], [Synthesis], and [Combination].

[Explore]: Consume energy to explore all surrounding objects, things, people, etc. The level of exploration depends on the energy consumed.

Explore?

Explore?

Ye Jing frowned. Does this mean to search?

Search everything around, but what can be returned to me?

Moreover, in the short introduction, there are four big words that attract his attention.

Consume energy!

These four words made Ye Jing's mouth twitch. It is estimated that he will bleed again!

Ye Jing didn't think about it anymore. No matter how he thought about it, it was not as practical as trying it.

He stretched out his hand and clicked [Explore]. In an instant, a shadow appeared in his sight.

[Explore]: Custom range.

Ye Jing pondered for a few seconds, looked around, and found that there was nothing worth searching.

After a pause, he took a few spiritual stones from the bracelet and threw them on the ground.

Let's try this.

After throwing the spiritual stones on the ground, Ye Jing's finger moved [Explore].

Range: within ten meters.

[Items], [Things], [People], [Unknown], these are the options under the range.

He clicked on [Items].

Then another blank appeared, asking him to enter.

[Spirit Stone]

[Exploration settings completed, consume one thousand energy to search the surrounding ten meters, do you want to continue]

One thousand energy?

One thousand spirit stones? ? ?

Ye Jing was shocked, he stared at the scattered spirit stones on the ground with big eyes.

I have to use one thousand spirit stones to explore a few spirit stones?

I am crazy!

Thanks to Doubi74110 for the reward of 10,000 book coins! OK, big brother is ruthless, I owe you a chapter, I will make it up to you later, thank you again~~~·