Early the next morning, Su Xiao got up very early, looked at the mana, and it had recovered to 7026 points, with the increase of his true intelligence attributes, the recovery speed of mana was also increasing, and there was also Bubuwang's Ice and Snow Goddess aura effect bonus, which restored an additional 5 mana points per minute.

After weighing it repeatedly, Su Xiao was ready to take a risk to improve a certain ability, because of the rapid improvement of his strength, that ability could not keep up with his pace.

If you improve this ability by normal means, there is indeed no risk, but Su Xiao uses unconventional means, and if others raise the cost of level 1, he can increase level 3~5, or even a lot.

With the 'Moving Blue Buff' Bu Bu Wang, Su Xiao went straight to the skill upgrade hall, which made Bu Bu Wang's mind go out to the waves, and it also took a lot of mana to improve that ability.

Soon, Su Xiao arrived at the skill upgrade hall, came to the inside of the skill upgrade hall with ease, and found a skill upgrade warehouse that no one used.

Puff~

The steam gushed, the skill upgrade bin locked, and Bu Bu Wang lay in the corner of the upgrade bin and began to catch up on sleep.

Please select the skill you want to upgrade. 】

Su Xiao chose the 'Breath Release' ability, because of an accident, he hadn't improved this very practical ability for a long time.

[Selected to complete, if you need to upgrade 'Breath Release Lv.18', you need to pay 50,000 Paradise Coins, yes/no payment.] 】

"Pay."

As soon as Su Xiao's words fell, a sense of teleportation struck, and when his sight recovered, he was already in an ancient battlefield.

The ground was dark red, as if soaked in blood, and the dragon's corpse was prostrate on a low hill with a black heart in its mouth, and not far from it was a giant in red armor with an empty chest.

The corpses of the powerhouses of all races were scattered on the ancient battlefield, because of the corpses of the demon clan, the ancient battlefield was filled with a smell of sulfur, just smelling this smell made people feel dizzy.

The scarlet mist drifted on the ancient battlefield, this is the blood qi of many strong people before their deaths, maybe even if they slaughter millions of living beings, there will not be such a strong blood qi.

Compared with the simple butcher, the blood of the ancient battlefield is more condensed and purer, this is already a kind of energy that can be used as a weapon, this was once a prosperous place in the void, and then because of the decisive battle between the destroyer and the spellcaster, this ancient battlefield was formed.

For the Void race, this is a forbidden area, where something extremely 'crazy' once lived, and even if it moved to the deepest part of the Abyss, no one would want to come here, except for a few wandering treasure hunters.

Su Xiao entered the void, but he could return to the reincarnation paradise at any time, this time he was only here to improve his ability, not to perform tasks in the void.

As soon as Su Xiao appeared, the blood qi of the ancient battlefield around him surged, these blood qi were extremely corrosive, once they invaded the human body, there would be endless troubles, unless they could return to the reincarnation paradise as soon as possible.

The normal process of improving the release of breath should be that Su Xiao uses his own breath to be lower than the blood qi of the ancient battlefield, so as to exercise his own breath and achieve the effect of improving the release of breath.

And last time, Su Xiao's brain hole was amazing, he converted the mana value into the Qinggang Shadow energy, and used the Qinggang Shadow energy to form a 'Temporary Devouring Core' outside the body, and used the absorption of this Devouring Core to purify and purify the blood and qi of the ancient battlefield, so as to use it to increase the strength of his own breath.

In this way, what was eroded by the blood qi of the ancient battlefield was the core of temporary devouring, and Su Xiao only needed to remove this thing to make it impossible for the blood qi of the ancient battlefield to invade his body.

There is no doubt that Su Xiao's idea is very perfect, and after practice, this idea is very successful, but who would have thought that the last time he was devouring blood qi, a blood-colored big hand suddenly appeared on the ancient battlefield.

This time, Su Xiao was going to accept it when he saw it, and he could improve as much as he could, but what he didn't know was that the owner of the blood-colored big hand, that is, the monster with white hair and a withered body, had been pinched to death by the sword demon, that is to say, as long as the sword demon did not come, there was no danger in the ancient battlefield, and as for the sword demon, he was in the deepest part of the black abyss, lying in a daze in the sea of living flowers.

Blood qi surged around Su Xiao, his eyes drooped, it was difficult to resist the blood qi of the ancient battlefield with his own breath, and in the process of resisting, he also had to shape a simple version of the Devouring Core.

Light blue energy surged in Su Xiao's palm, and considering that the blood-colored hand might reappear at any time, he only converted 1,000 mana points into green steel shadow energy, thus forming a simplified version of the Devouring Core.

A few minutes later, a simple version of the Devouring Core appeared in Su Xiao's hand, a tail finger-thick energy line was linked between the Simple Devouring Core and Su Xiao, don't underestimate this energy line, there are fifteen ultra-simple small Devouring Nuclei in this thing, Su Xiao's Devouring Core has already raised the upper limit once, and after solving the hidden danger of the Sword Demon Energy, he can completely manipulate the Devouring Core in his body without any restrictions on its use.

The Simple Devouring Core floated above Su Xiao, he took a deep breath, and dozens of small holes on the Simple Devouring Core opened, like a long whale absorbing water, instantly inhaling the blood qi of the ancient battlefield within thirty meters around him.

Click......

Cracks gradually appeared on the core of the Simple Devouring Core, Su Xiao was not surprised, this thing could only be used temporarily, and it was precisely in this way that it was safe, so as not to prevent Su Xiao from being eroded by the unrefined blood qi of the ancient battlefield, causing confusion.

After a large stream of blood gas is sucked into the Simplified Devouring Core, the Simplified Devouring Core begins to operate, purifying and purifying these blood gases.

Soon, a stream of pale red energy gushed out from the simple version of the devouring core, and at this time, the simple version of the devouring core was already blood-red, full of blood and qi impurities.

The pure blood qi was transmitted to Su Xiao along the energy line, and the fifteen simpler devouring cores in the energy line began to operate, purifying this blood qi again and again.

By the end, the blood qi had been purified to almost transparent, and only a faint red color could be seen.

The blood qi that had been purified sixteen times merged into Su Xiao's breath, and his aura began to grow rapidly.

The reason why Su Xiao has a strong blood qi on his body is not that he kills too many people, this is only a small part of the reason, except in the battlefield world, in other worlds, the number of enemies he kills is limited, and the reason why he has such a heavy blood qi on his body is completely because he devoured the blood qi of the ancient battlefield.

The last time Su Xiao absorbed blood qi on the ancient battlefield, his aura was terrifying, which was also the main reason why the charm attribute could not play a role.

After the stabilization of many worlds, the blood qi on Su Xiao's body has gradually faded, maybe in a few more worlds, the terrifying blood qi on his body will dissipate, but now he has come to the ancient battlefield to absorb the blood qi, which makes the blood qi in his body reach a new height.

Maybe when his blood qi is strong to a certain extent, when he uses the breath release, he can even achieve the effect of the overlord color domineering, of course, this requires the breath release to have a high level.

Su Xiaopan sat on the dark red soil, he sensed that his aura was increasing at a very exaggerated speed, and above him, due to the adsorption of the simplified version of the Devouring Core, a blood-colored vortex had appeared.

Su Xiao was not indulging in the rapid increase of his aura, he was always vigilant, once the situation was not right, he would immediately let the blood qi of the ancient battlefield erode him, thus triggering the teleportation mechanism.

However, Su Xiao had absorbed blood qi in the ancient battlefield for ten minutes, and there was no abnormality around him.

With a click, the simplified version of the Devouring Core shattered, and the blood and qi vortex enveloped Su Xiao inside, and he was instantly teleported back to the skill upgrade warehouse.

With a scream, Bu Bu Wang was startled awake, the hair on its back stood up, and its hind legs trembled suddenly.

In front of Bu Buwang, Su Xiao, whose face was full of red lines and his eyes were blood-red, was looking at Bu Buwang.