Every cause must bear fruit, your catastrophe is me

Until the end, when Tang Yin felt that he was going to collapse because of the sacrifice of too much blood, he still didn't see any reaction from the Demon Locking Tower, at most, some of the light seemed more intense.

"Is this artifact really going to be able to be refined only after I've been completely squeezed out?"

Essence and blood are also extremely important for monks. If the loss reaches a certain amount, it will inevitably cause a decline in cultivation.

But it was obviously not Tang Yin's character to just give up like this, so he immediately took out the elixir to replenish the blood essence and swallowed it, then dripped the blood essence on the Demon Locking Tower again.

If this does not have any effect, Tang Yin can only temporarily give up refining the Demon Locking Tower, and think about it when he improves his cultivation in the future.

"Hmm! It's really delicious blood essence. It's been a long time since I absorbed such pure blood essence!"

Just when Tang Yin was about to fall into a coma, the Demon Locking Tower suddenly emitted an incomparably dazzling light, which instantly illuminated this world!
Tang Yin cursed in his heart that it was not good, why did such a moth come out just after a little improvement, wouldn't he be able to expose himself soon?

Resisting the feeling of weakness in his body, he immediately put the demon lock tower back into his arms, intending to use this method to solve the flickering brilliance.

"Who, who, who closed the window!!"

A sharp cursing sound came out from the Demon Locking Tower, which immediately startled Tang Yin. After staring at the Demon Locking Tower in disbelief, he was able to confirm that the sound came from the Demon Locking Tower after several times of confirmation. .

"This, this, this? What's going on? Didn't it mean that the Demon King is no longer imprisoned in the Demon Locking Tower?"

"How can there be such a voice!"

Because the system has already reminded before that, the function of this demon-locking tower is to suppress the demon clan, or the demon clan with at least the realm of the fairy king.

So Tang Yin can be sure that the monster clan that can make this sound must be a monster clan that has at least the cultivation level of the Immortal King Realm!
But why is the demon clan who owns the Immortal King Realm in this demon lock tower?Is it to increase the difficulty of the task for yourself?
"Yes, that's right. After finally coming out to bask in the sun and get some air, why don't you know how to do more good deeds?"

After Tang Yin took the demon-locking tower back under his body, the voice rang out again, and there was also a comfortable exclamation.

"System, what's going on with the system? How do you do things!"

Tang Yin asked, holding back the anger in his heart, he thought it would be a great weapon in his hands, but now it seems that not only has no effect, but also wasted so much of his blood in vain.

How can he clear the demon king in the Immortal King Realm now? It is impossible to advance to the Immortal King Realm in a short period of time, and how can he refine it for his own use.

"It should be that there were some accidents during the system upgrade, and it didn't have any major impact."

"No big impact? Isn't this impact big enough!"

Tang Yin just laughed angrily. There are too many problems in the system upgrade, and now he even has to deduct his own rewards, which is really unacceptable to Tang Yin.

"Due to upgrading the semi-artifact demon lock tower to a divine weapon, the demon clan souls in the artifact lock tower have entered. If the host cannot accept it, the level of the demon lock tower can be lowered, and it can be directly wiped out."

……

"It's okay to lower the grade, and it's not unacceptable to have the soul of this monster race, so let him put it here."

Lower the level of the demon lock tower to kill it?

This is absolutely impossible. Even if Tang Yin waits until he enters the Immortal King Realm before refining, it is impossible to reduce the artifact to a semi-artifact.

It may only take time to advance to the Immortal King Realm, but if you want to upgrade the level of a demi-artifact to an artifact, it is simply more difficult than ascending to the sky!
Therefore, Tang Yin could only endure it, at worst, he would carry out refining in the future, and Tang Yin could not wait.

"The host can rest assured that this soul will not cause any harm to the host. In the demon lock tower, he cannot exert his own strength."

"That's good. If there is a hidden danger in this demon lock tower anytime and anywhere, it would be too scary."

Since the demon king in the demon-locking tower cannot replace his own strength, he can naturally refine the demon-locking tower without any pressure.

I don't need to look at this artifact, I can only look at it and not use it.

After the demon-locking tower is thoroughly refined, it is not easy to destroy the souls in the demon-locking tower, so there is no need to worry about it.

"What, what's going on!"

The voice in the tower came out again, but this time it seemed extremely panicked, and the words began to tremble.

Since it is a divine tool, it must be able to withstand the baptism of the power of the sky thunder. If the power of the sky thunder can be used to erase the soul of the demon king in the lock demon tower, that is also quite good.

Therefore, without any hesitation, Tang Yin directly poured the power of the sky thunder into the Demon Locking Tower, so as to completely get rid of this superfluous thing.

"If you leave this demon-locking tower now, then I will revoke the power of this thunder, but if you want to continue to stay in this demon-locking tower, then don't blame me for being rude!"

Tang Yin said coldly, it is simply unforgivable to dare to behave wildly on his territory and want to make himself unable to use this artifact!

"Hey, you little bastard dared to threaten me, I just don't... ah!!"

The scream in the Suoyao Tower had completely spread throughout the tower, making Tang Yin couldn't help sighing that it was the power of the sky thunder.

"Etc., etc!"

"There is no room for negotiation. If you continue to stay in the demon lock tower, then I can only refine you!"

With the injection of the power of heavenly thunder, Tang Yin's surprise development, this lock demon tower seems to be able to communicate by itself, and has been able to use spiritual consciousness to perceive in detail.

And also know what is a specific use of this demon-locking tower, that is, it can suppress the demon clan, the higher the cultivation level of the person who controls the demon-locking tower, the higher the realm that can suppress the demon clan.

Could this be a sign that part of the Demon Locking Tower has been refined?

Tang Yin also couldn't believe it and muttered to himself, he wasted so much blood essence and didn't refine him, but once the power of the sky thunder is injected into it, there is a possibility of refining him, it seems that this lock demon tower is also The master who eats soft but not hard.

As the system explained before, there are many restrictions in this artifact lock tower, and only by completely refining these restrictions can it be regarded as a complete control of the demon lock tower.

But before again, there is one more important thing to do, and that is to refine the soul of the demon clan in the demon lock tower!