Longevity starts with learning

The rumbling sound of war drums resounded throughout the world, like the majestic Tianyuan City. After just a few days of fierce fighting, the outside of the city had been completely occupied, and the city wall that soared into the sky was also in dilapidated condition.

One gap after another is like a flood. Every moment, a large number of demons pour into the city along the gaps in the city wall.

Tianyuan City, which was supposed to be in order, has become a battlefield where the two sides are fighting.

In the sky, there is a majestic city-protecting formation. A formation that bursts out with power. Every minute and every second, a large number of demons are directly annihilated by the power of this city-protecting formation, even the corpses. Never left.

Even if there are surviving demons, they are often killed by the massive battleship fortresses, psychic turrets, puppets, and monks in the city in just a few breaths.

Before the Nascent Soul Demon entered the city, an unimaginable meat grinding ground had been formed with several gaps in the city wall as its core.

Although judging from the situation on the surface, after the city was broken, the demon side became the target of massacre.

But obviously, everyone knows that the key to all this lies in this city defense formation.

As long as the fifth level is not released, the city defense formation that has been improved many times by Chu Mu, the master of formations, can almost become a true copper wall and iron wall as long as it has enough energy.

Even if several great Nascent Soul demons arrive together, it will definitely be difficult to gain any benefit from this city-protecting formation.

But even in the world of immortality, one must abide by the law of conservation of energy, even though spiritual energy, as a special kind of energy, is almost endless.

However, using spiritual energy and energy to construct a terrifying power that is enough to suppress the Yuanying monk, the amount of energy required every minute and every second is also huge.

Without enough energy support, no matter how mysterious and powerful this city defense formation is, it is still just a castle in the air.

Outside the city, several Nascent Soul demons still stood calmly in the air. Endless demons rushed towards Tianyuan City with a madness that was more terrifying than the tide of beasts.

Every monster that falls under the power of the city defense formation must mean that a certain amount of the energy of the formation has been consumed.

This city defense formation that has deterred demons for more than ten years seems to be increasingly crumbling under the endless consumption, which is visible to the naked eye.

However, no one noticed that the blood cave in Tianyuan City had caused some waves.

After several years of fierce fighting, a large number of demons fell, and the majestic blood energy accumulated in this blood cave day after day.

Externally, or in other words, the apparent purpose of the blood cave is to support the cultivation of Wangcai, a fourth-level monster, and to serve as a blood storehouse for Tianyuan City and a supplement to Tianyuan City's merit system.

However, no one knew that this city protection formation had been quietly integrated into this blood cave under Chu Mu's massive force.

This side's blood cave, which has accumulated a huge amount of blood energy, has also become the backup energy for this side's city defense formation.

However, even after several years of fierce fighting, Chu Mu's deliberate cover-up never showed the slightest bit, and it existed as a hidden trump card.

According to Chu Mu's expectation, the use of this trump card could at most be to extend the life of Tianyuan City for a while.

But now, the demons are coming one after another, trying to take advantage of the empty defense of the nine cities and the opportunity of trapping all the elites in the demon world, and break through the nine city defenses in the hills in one fell swoop.

As for the demon formation masters, they were no longer on the front line because the sacrificial belief system of the demon world was destroyed.

This one of his trump cards seems to be able to play an unexpected role.

Time passed little by little, and Chu Mu never showed up, or even stepped into Tianyuan City.

The city defense formation became more and more shaky, and the formation was broken, which seemed to be a doomed end.

I don't know when, under the almost desperate eyes of countless monks in the city, the Tianyuan City defense formation that had frightened the demons for more than ten years, after a violent tremor, finally could not maintain its terrifying power.

Ruyuan's majestic aura dissipated as quickly as a punctured balloon in just a few breaths, and the formation's forbidden spiritual light was also dim and visible to the naked eye.

In the end, it burst like a bubble.

"Hahaha……"

"Okay! Okay! Okay!"

In the sky, one after another, unconcealable and hearty laughter could be heard one after another. The Nascent Soul Demon standing in the air was finally no longer silent at the moment when the city defense formation was broken.

Thick and majestic demonic auras burst out, and Nascent Soul's mighty power exploded, all falling in Tianyuan City.

boom! boom! boom!

Shocking roars continued, and the battle situation in the city that had been stalemate with the help of the city's protective formation completely collapsed in an instant after the Nascent Soul demon personally came to an end.

In the huge Tianyuan City, the only remaining powerful Nascent Soul was in danger under the siege of several Nascent Soul Demons. In an instant, it was in danger.

As for the other low-level monks, under the great power gap of the great realm, it instantly turned into a massacre without any resistance.

The war order that had been barely maintained in the city seemed to be completely broken under this massacre.

The city was filled with chaos, and countless monks were fleeing for their lives. Even though there were a large number of puppets, as well as battleships, fortresses, and psychic turrets, they were still following fixed logic and pouring firepower at the demons. However, under this overwhelming trend, it was like a mantis' arm acting as a chariot. It makes no sense at all.

"It's almost..."

Amid the chaos and disorder, a soft murmur sounded extremely abruptly, amidst the erosion of the city defense formation, but it sounded extremely strangely in Tianyuan City, and it was transmitted to the ears of every living thing in the city with extremely clear clarity.

The next moment, as if in response to this whisper, the slightly rippling blood cave in the city suddenly burst out.

A blood-colored light column several hundred feet thick shot up into the sky. In an instant, the blood completely dyed the sky red, as if it was a curtain of heaven, dyeing the sky above Tianyuan City red.

Blood was raining down, just like a long drought meeting sweet dew. At this moment, the whole Tianyuan City seemed to exude a strange bloody smell.

The blood had no stench, but had a faint fragrance. Accompanied by a subtle humming sound, the city defense formation that had broken the silence reappeared in this Tianyuan City in an instant during this blood-colored invasion.

The formation was blood-red, as if blood-red light curtains fell from the sky, and the blood-colored streams in the sky intertwined, as if a sea of ​​blood was across the sky. The majestic aura that was enough to suppress the Yuanying Great Monk also reappeared in this world.

In the sky, a person in green shirt appeared, and the sea of ​​blood turned into a long river to lead him away, walking in the air, until he reached the sky above Tianyuan City.

At this moment, in the world, whether it was people or demons, they all subconsciously looked at the figure walking in the air.

The demons in the city were crazy, but under the suppression of the formation, even the several unscrupulous Yuanying demons could hardly move at all.

They could only watch, the person in green shirt got closer and closer, and clearer and clearer.

Until the pair of eyes that seemed to be in the deep starry sky looked down, his lips moved slightly, and another soft whisper quietly disappeared into the ears of the creatures in the city.

"Suppress!"

He raised his hand and pressed it down, his palm did not carry the slightest magic power, but at this moment, for the demons in the city, they only felt that this world was pressing towards them.

Bang!

When the first explosion sounded, a demon's body exploded, and blood and flesh flew everywhere. It seemed to cause a chain reaction, and one demon's body after another exploded, regardless of their cultivation level or size.

As long as you are in this Tianyuan City and are a demon, there is no exception...

...