With Liu Yu's understanding of the human body, he could easily identify what the bones were used for.

Men and women, old people and children, piles of bones scattered in the wilderness, come from different groups of people.

You can see them everywhere in the wilderness and in every village.

Along the way, most villages and towns have lost all traces of human life and have turned into "dead villages".

The few mortals who survived were also being ravaged by monsters.

Looking from top to bottom, it looks like civilization has been invaded by barbarians, and many traces of civilization have been destroyed.

At first, Liu Yu's face was expressionless.

But after seeing too much, I just feel that there is an unknown fire in my heart, and it is growing and burning!

"At this time, the state has basically recovered, and the mana has also returned to 60%."

"Just in time, collect a wave of fuel for the Qingyang Demonic Fire so that it can advance to the "Spiritual Fire" level as soon as possible."

"Jinge City has just been destroyed. Within a day and a half, the beast tide should not arrive so quickly."

Countless thoughts flashed through his mind, Liu Yu made an excuse, and then the light turned around and fell.

At the same time, with a left hand movement, the Qingyang Demonic Fire emerged.

In the village, several first-order two-headed wolves were really wreaking havoc.

The tall and hard monster body and the defense that ordinary swords cannot break through made several monster wolves look around.

Wherever they were, houses collapsed one after another, and every mortal died.

However, the two-headed wolves were reduced to ashes by the blue flames that fell from the sky before they were "mighty" for a long time.

The mortals who survived cried with joy and couldn't help but kneel on the ground and worship the sky, thanking the "immortal master" for setting up a memorial tablet for immortality.

Liu Yu was indifferent and had no intention of communicating with mortals. He transformed into a ray of blue light and rushed towards Qingzhou, stopping from time to time to kill low-level monsters along the way.

Those small beasts that do not have third-level demon cultivators are the most favored by him, and he will often focus on taking care of them.

For this reason, even the speed of traveling was delayed a lot.

"Ho~!"

A brown demon tiger with a "king" stripe on its forehead roared at the sky, as if it wanted to show off its power to scare off its opponents.

But if you look closely, you will find that the tiger's body is tense and obviously very frightened.

The figure in the sky had an aura as deep as a mountain, making it extremely uneasy.

A stream of green flames fell straight down, and even though the demon tiger tried its best, it eventually turned into ashes.

Only a newborn tiger cub, the size of a domestic cat, was left in a daze, unable to react. It was weak, helpless and cute.

It doesn't understand what its mother did wrong, why did it suffer such a bad luck?

What bad thoughts can a little tiger have?

It's just hungry and wants a full meal!

High in the air, Liu Yu's face was expressionless.

With a thought in his mind, the Qingyang Demonic Fire pounced on the little beast, turning it into ashes without even having time to scream.

He shows no mercy to human monks, and he has no mercy for monsters, regardless of their appearance.

"It's almost time. We are only a short distance away from being promoted to the third level."

"Originally, these years of occasional training have allowed Qingyang Demonic Fire to gradually surpass the second level, and absorb an entire third-level demon cultivator as fuel, plus so many low-level demonic beasts."

"One more batch of fuel will be carefully harvested, and that will be enough."

Thinking like this, Liu Yu gave up the idea of ​​returning to Qingzhou immediately, and instead started hunting along the border of Qingzhou.

Wherever it passes, low-level monsters turn into fuel for the demonic fire to grow.

By hunting not far from the border, not only will there be a large number of monsters, but the efficiency of harvesting fuel is extremely high, and if you encounter a powerful third-level monster cultivator, you can escape back to Qingzhou in time to ensure safety.

It would be safer to do so.

…

Under the extremely high hunting efficiency, the monster beasts on the border were much sparse, and the day and night passed in the blink of an eye.

One day later, Liu Yu looked at the blue flame the size of an egg in his hand, and a smile appeared on his face.

At this time, Qingyang Demonic Fire has completely reached the third level and has been promoted to the spiritual fire level.

From the originally pure deep blue flame, wisps of black gas continued to emerge, exuding a heart-stopping power.

The two colors of green and black are intertwined, which looks particularly evil. It is easy to think of bad scenes at a glance.

Such a change in appearance is undoubtedly more in line with the image of the demonic fire. The "Qingyang Demonic Fire" is worthy of its name.

At this time, the fire is considered to be in its complete form. Next, you only need to continuously replenish fuel to slowly increase its power.

However, the further you advance, the more "fuel" you need, and large-scale killings are inevitable.

Or, hunt high-level monks and demon cultivators.

"How to obtain more fuel is indeed a question worth pondering."

"It's just that some time has passed, and the beast tide should be approaching. It's better to return to Qingzhou now."

"Hunting monsters to harvest fuel will provide you with many opportunities in the future."

"If we encounter that late-stage third-order Cold Sky Eagle, it will be very bad."

This thought flashed across Liu Yu's mind.

Ignoring the gratitude of more than a dozen mortals, the magic power in his body circulated slightly, turning into a blue light and rushing towards the largest fairy city in the northeast of Qingzhou.

Crescent City, the largest fairy city in the northeast of Qingzhou, shoulders the important task of defending the barrier in the northeast of Qingzhou.

Its status is the same as that of Wangyue Fairy City, and it is listed as one of the four fairy cities in Qingzhou.

Even now when the beast tide breaks out, as the front line against the monster beasts, it is more important than Mochizuki Immortal City.

Before the beast tide broke out and before contact was lost, Liu Yu heard that there were three Jindan monks stationed in the city.

And senior sister Li Buyu is one of the Jindan elders stationed there.

The whole journey was like lightning, and when he was within a certain range, he took out his sect token and contacted Li Buyu to tell him the news that Jin Ge City had been breached.

At the same time, the power of qi and blood in the body circulates, and the complexion changes from normal to pale.

Combined with the several wounds deliberately left and the blood stains on his robe, it looked like he had experienced a fierce battle and managed to escape the siege by luck.

Two quarters of an hour later, the city wall was about fifty feet high and the Crescent City stretching for twenty miles to the left and right came into view.

This city is taller than Jinge City.

Unlike Jinge City, Crescent City was built in the northeast with the original intention of resisting monsters.

Therefore, the formations arranged, the runes engraved, etc. are mainly used to defend against monsters.

In terms of its defensive capabilities against monsters, it is at least two levels ahead of Jinge City, and it really feels indestructible.

From a distance, Liu Yu saw a heroic figure of a female cultivator wearing a silver military uniform, standing quietly at the highest point of the fairy city.

At first glance, the beauty in her prime looks like a fairy who has fallen into the mortal world and has no desire to eat the fireworks of the world.

This woman is none other than Li Buyu!

Liu Yu had a thought in her mind and flew over directly, cupping her hands from a distance and saying:

"Ahem. I've met Senior Sister."

He coughed twice, his face was as pale as paper, and he looked like he was seriously injured.

If you don't want a mission to come immediately after a mission, this is the only solution.

After all, even the Jindan elders must obey the decisions of the Elders Council, and there are Yuanying Patriarchs on top of them.

"Junior brother, how are you?"

"Is the injury serious?!"

Seeing Liu Yu's appearance, Li Buyu showed a look of concern on his face, opened and closed his thin red lips, and asked softly.

"Ahem. It doesn't matter."

"I was chased by a third-level demon cultivator and suffered some injuries, but it doesn't matter. I just need to rest for a while."

Liu Yu showed off her acting skills, coughed twice again, and spoke weakly.

"In this case, then junior brother, please quickly tell us about the situation in Jinge City, and then return to the sect to recuperate. Be careful not to damage the origin of the golden elixir."

Li Buyu frowned slightly and then said.

Due to her personality, it is difficult for her to say gentle, warm and comforting words. This level is already the limit now.

Seeing what Liu Yu said, bad thoughts flashed through Li Buyu's mind.

Could it be that in just two years, Jin Ge City was invaded by monsters? Is the tide of monsters really so terrifying?
To be continued...