Sun Yu continued to transport spiritual power to the bone staff like this, and I don't know how long it took, Sun Yu felt that the spiritual power in his body had dried up.

"It can't be like this, or I'll be sucked dry sooner or later. ”

As a result, Sun Yu no longer only transmitted spiritual power, but began to recite the mantra of the exercises in his body and began to cultivate, while transporting spiritual power.

The spiritual power of the outside world entered the body because of the exercises, and after circulating for a big Zhou Tian and a small Zhou Tian, it completely became his belongings, and then a finger came out and passed on to the remnant spirit.

As time passed, the remnant spirit absorbed more and more spiritual power, and cold sweat began to break out on Sun Yu's forehead, and the speed of the exercises in his body became faster and faster.

"It's a bottomless pit!"

If it was only an hour before the spiritual power in his body was exhausted, then now it is a stick of incense, and this time has a tendency to speed up more and more.

"Damn, I'm really going to be sucked and by then!"

This is an experience that Sun Yu has never experienced, just like a person who has not drunk water for a long time can only pass through his mouth after encountering water, and he can't enter his mouth, which feels really tormenting.

"Fight!"

The operation of the exercises in his body has accelerated even more, and now he has cultivated to the second layer of the Wind Forest Volcano, and when he reaches the Yuan Infant Realm, then...

"That's right!

Sun Yu's eyes lit up, he almost forgot!

"System! I'm going to level up!"

"Ding!"

"Congratulations to the player for cultivating to the next level, the current level: Yuan Ying First Order. ”

A white light flashed, and Sun Yu's cultivation rose instantly.

Finally, the spiritual power consumed in his body and the spiritual power that entered stabilized, and Sun Yu breathed a sigh of relief.

"Whew.... It's okay, it's okay, if I go down at that speed, I'm afraid I'm really going to be sucked into a person. ”

A little afraid, Sun Yu's heart was still beating violently.

But even that's just the beginning...

Half a day later...

"Damn!"

Sun Yu is going to scold his mother, this is a bottomless pit, and the spiritual power required is getting more and more, and Sun Yu saw that the powder on the bone staff has not been completely absorbed, and the posture has only absorbed a small half.

Sun Yu was a little devastated, but the spiritual power had been output, how could he stop?

"Damn! Lao Tzu fought with him!"

Sun Yu took a deep breath, and the exercises in his body continued to run wildly, and even the somewhat obscure exercise mantras that had only advanced to the third level before became a lot smoother. “

Sun Yu felt that if he could get through this hurdle, it would be a qualitative leap for him.

And just like that, three days passed...

Sun Yu was already numb at this time, he now felt that the experience of three days ago was nothing at all, and now he knew what hell was.

The spiritual power frantically frantically fused into his body, quickly turning around after a round of Big Zhou Tian and Xiao Zhou Tian, and then directly flowing directly to the Remnant Spirit Bone Staff.

After this tempering, Sun Yu's spiritual power has become a lot more condensed, and at the same time, the speed of his transformation of spiritual power is also countless times faster than before.

Where Sun Yu didn't know, his experience bar rose wildly, and at this moment...

"Ding!"

"Congratulations to the player for upgrading to the second level: current level: Yuan Ying II level. ”

"Congratulations to players for unlocking the Battlefield of Gods and Demons, current status: can participate. ”

Sun Yu never expected that he would upgrade his cultivation in this scene, so he couldn't help but be shocked.

However, now is not the time to be surprised.

The dantian can provide a wider area to accommodate spiritual power, but even so, it is still not enough!

Sun Yu didn't know how many spirit stones he had taken out to supply spiritual power, but it was still a drop in the bucket.

There is a supply of formations in this room, and there is an abundance of spiritual power, but even so, it is still not enough for Sun Yu to consume.

"Is this really going to be the case?"

Sun Yu gritted his teeth and made a decision.

A small spiritual vein was dragged out of the storage ring by Sun Yu, this was the smaller of the seven spiritual veins he got from Xingyue, after being shrouded in spiritual veins, Sun Yu finally felt that the consumption of spiritual power was much better than before.

"I see, it seems that the spiritual power is not enough. ”

After the spiritual power was abundant, coupled with the fact that Sun Yu had already supplied enough spiritual power to the remnant spirit bone staff, the remnant spirit bone staff also began to spontaneously absorb the spiritual power from the outside world, which made the pressure on Sun Yu's shoulders much less.

"The revolution is just around the corner!"

There's still a fifth of the powder left on that bone staff, and I'm afraid it won't be long before it disappears directly!

Finally, the powder is completely gone!

The spiritual power was bounced back, and the bone staff seemed to be saturated with absorption, and Sun Yu's spiritual power was no longer needed.

Sun Yu was hit by this rebound force, fell directly to the ground, and sat on a pile of broken stones.

"I'll rub!"

His ass was hit by some pieces, and Sun Yu's face changed.

took out the stones from under his buttocks, and when Sun Yu saw these stones, his expression changed:

"My day..."

Those spirit stones that were originally full of crystal luster were all dull and dull at the moment, and all their spiritual power was drained.

In this way, Sun Yu was really surprised.

Sun Yu turned his head, and the nearly kilometer-long spiritual veins were full of dead air at this time, and Sun Yu was sitting on a pile of gray stones!

"A whole spiritual vein.... There are even a few high-grade spirit stones in it..."

In addition to the spirit stones consumed before, Sun Yu roughly calculated, there are at least 400,000 high-grade spirit stones, as for the middle-grade spirit stones and low-grade spirit stones, forget it, that kind of level, it must be countless...

"The best spirit stone... I saw it, and it actually cost five bucks... It's all my treasure. ”

Sun Yu never thought that this seemingly relatively small spirit vein actually had five top-grade spirit stones.

A top-grade spirit stone is about equal to 100,000 top-grade spirit stones, and it is still priceless, and people who have top-grade spirit stones will not exchange this spirit stone for a high-grade spirit stone at all.

The spiritual power in the best spirit stone is extremely pure and abundant, if the cultivation reaches the bottleneck, use this spirit stone to wash the whole body, I am afraid there will be unexpected effects.

"It's horrible..."

Sun Yu looked at the remnant spirit bone staff suspended in the air and swallowed.

What a remnant is this... It's a soul eater!

Spiritual power is the same as not wanting money.

"Zheng Zheng..."

And just when Sun Yu was slandering, the bone staff suddenly moved, and Sun Yu hurriedly looked up, but when he looked, the bone staff did not move.

“？”

Sun Yu felt like he had been tricked.

"Damn.."

However, before Sun Yu could finish scolding, the bone staff began to move again, this time it was no longer the same as before, but it shook rapidly, as if something was about to come out.

Sun Yu stood up from the pile of stones and stared at the remnant spirit bone staff tightly, for fear that something would happen to it.

"Bang!"

Suddenly, the remnant spirit bone staff erupted into a burst of fierce red light, the light was as bright as blood, and it was bright in this dark space, and Sun Yu couldn't help but raise his hand to stop his eyes.

This light... It's too strong, isn't it?

However, it was only a moment, and the light suddenly disappeared, and it was all recovered by the bone staff.

"I... Go..."

Immediately afterwards, another burst of black light erupted, the black light was not strong, and it was not clear in the darkness, but this time Sun Yu saw it clearly.

When the black light was withdrawn, countless light spots traced back to the body of the remnant spirit bone staff, forming complex lines on it, and at the same time, the red light was engraved and swirled with the black lines, leaving strange and mysterious lines on the white bones that were originally as white as jade.

The remnant spirit bone staff slowly fell, returning to Sun Yu's hand.

"This..."

Grab the remnant again, this time the feeling is completely different from before.

In addition to the appearance of the remnant spirit bone staff, even the head has also changed, it was originally an eyeless dragon head, although it looks terrifying, but it has no look, but now it is different from before, the original eye socket is out, and there are blood-red pupils, that look is like the reincarnation of the red dragon, ready to devour Sun Yu at any time.

"... This remnant bone staff is too terrifying. ”

"Ding!"

"Congratulations to the player for upgrading the Remnant Spirit Bone Staff to the Spirit Devouring Bone Staff, the current level: Immortal Lower Realm. ”

"Bang. ”

Sun Yu didn't grasp it steadily, and the remnant spirit bone staff fell to the ground, making a crisp sound.

This bone staff was originally an artifact, between the Tao and the immortals, but now...

Sun Yu's eyes were full of shock, this time not only he had upgraded, but even the remnant spirit bone staff had been upgraded...

"Damn! What are you doing, kid! Why don't you pick up the old man and me!"

A crimson figure appeared beside Sun Yu, and the young man looked the same as before.

However, this time was different from before, Sun Yu's eyes were red.

"Dujiuyou, you're finally back. ”