I only reached the Foundation Establishment stage at eighty years old, and then the system appeared.

With powerful warships and a formidable legion, Yang Hongbo led his people to rout the demons they encountered and rescued many immortals who had hidden deep underground to escape the demons.

On this day, Yang Hongbo and Shi Feihua were standing in a settlement of immortals that had just been rescued. Looking at the immortals who had survived the ordeal, their faces were filled with the joy of regaining their freedom, and their hearts were filled with relief.

"Clan Chief Yang, we owe our success in clearing the Demon Continent to the powerful forces brought by your Yang family. Otherwise, we don't know how much longer we would have struggled in this hellish situation," an elder from the Immortal Clan stepped forward and said gratefully to Yang Hongbo.

Yang Hongbo smiled and waved his hand: "Old man, you don't need to be so polite. This is also for the future of our immortal race. Although we have wiped out the demon race, there are bound to be some who slipped through the net, and I am worried that they will not let this go."

Shi Feihua nodded, his brows furrowing slightly: "Clan Chief Yang is absolutely right. The Demon Clan has always been cunning and treacherous. Having suffered such a heavy blow this time, they will surely try every means to retaliate."

Just then, a Yang family scout rushed over, knelt on one knee, and reported breathlessly, "Report! Clan Chief, Sect Master, we have discovered a mysterious force on the edge of the Demon Continent, heading towards our base. Judging from its momentum, it seems to be up to no good."

Yang Hongbo and Shi Feihua exchanged a glance, and Yang Hongbo said in a deep voice, "Let's go and see what this so-called mysterious power is."

The group arrived at the fortifications and, looking into the distance, saw a force shrouded in black mist slowly approaching. As they drew near and the mist dissipated, Yang Hongbo and Shi Feihua realized that this was not some mysterious force at all, but clearly a demon beast race!

However, these monsters were different from those they had seen before. They were hundreds of millions of enormous monsters with intelligent glints in their eyes, and they were arranged in neat rows, clearly having undergone rigorous training.

"Hmph, so they're the demon beast race." Yang Hongbo sneered. "Why don't they stay in their own territory and instead come to this demon continent to meddle?"

At this moment, a gigantic demon emperor, radiating a powerful aura, stepped out from the demon race. He roared to the sky, his voice causing the surrounding air to tremble slightly, and then declared, "You immortals, do not be arrogant! Today, our demon race and the demon clan have joined forces to utterly annihilate you immortals!"

Shi Feihua stepped forward and shouted, "You demons have no enmity with our immortals, so why did you listen to the demons' instigation and participate in this great war? Don't you know that the demons are always treacherous and cunning? How can their words be trusted?"

The Demon Emperor sneered, "Hmph, enough with the sweet talk. The Demon Clan said that if we don't help them, after your Immortal Clan destroys the Demon Clan, your next target will be our Demon Clan. Although our Demon Clan doesn't want trouble, for our own survival, we have no choice but to fight you!"

Yang Hongbo sneered, his gaze sweeping over the demon beast race: "You? You dare to challenge our immortal race? I'd like to see just how capable you demon beasts really are."

The demon emperor's eyes widened in fury, and he roared, "Arrogant! Today I'll show you the might of our demon race!" With that, he swung his claws, and the demon beasts behind him roared deafeningly as they charged toward the immortal race's defensive fortifications.

Yang Hongbo showed no fear. He waved his hand and shouted, "All warships, prepare to engage the enemy! Immortal Emperor Legion, follow me!"

Eleven super warships instantly activated, their cannons flashing with dazzling light, unleashing powerful beams of energy towards the demon beast race. Simultaneously, a legion led by one hundred Immortal Emperors charged towards the demon beast race like tigers descending a mountain.

In an instant, the battlefield resounded with battle cries and overflowing energy. Although the demon beasts were enormous in size and number, the immortal race's super warships and immortal emperor legions were not to be underestimated. The energy beams from the super warships relentlessly bombarded the demon beasts, blasting them to pieces. The immortal emperors, on the other hand, unleashed various powerful immortal techniques, engaging in a breathtaking close-quarters battle with the demon beasts.

Seeing this, the leading demon emperor roared, unleashing a powerful aura. It transformed into a black shadow and charged towards the immortal race. One of Yang Hongbo's peak immortal emperors sneered, his immortal power surging as he met the attack.

"Hmph, you think you can fight me?" The Immortal Emperor sneered, and with a wave of his immortal sword, a sharp sword aura slashed towards the Demon Emperor.

The Demon Emperor nimbly dodged the sword energy, then opened its blood-red maw and lunged at the Immortal Emperor. The Immortal Emperor flashed behind the Demon Emperor and thrust his sword forward again. Sensing the danger behind him, the Demon Emperor quickly turned and blocked the Immortal Emperor's sword with his claws.

"You've got some skill, but that's about it." The Immortal Emperor said, his immortal power erupting once more, a powerful aura spreading out. He unleashed a powerful immortal technique, and a gigantic sword shadow appeared in the sky, slashing down towards the Demon Emperor.

The demon emperor sensed the immense power of the sword shadow and a hint of fear appeared in its eyes. However, it did not retreat. Instead, it exerted all its strength, condensed a black energy ball, and charged towards the sword shadow.

With a loud "Boom!", the sword shadow collided with the energy ball, unleashing a powerful shockwave that sent the surrounding demonic beasts and immortals flying backward.

The demon emperor was sent flying backward by the shockwave, spitting out a mouthful of blood. Struggling to its feet, it looked at the immortal emperor before it, its eyes filled with resentment and rage: "I never expected you to possess such power. Today, our demon race has truly fallen."

At this moment, Yang Hongbo appeared above it and sneered: "Now you know you regret it? Too late! Your demon race was bewitched by the demon race and participated in this war you shouldn't have participated in, so you have to pay the price."

Just then, a long, drawn-out horn sounded in the distance. Upon hearing the horn, the Demon Emperor's eyes lit up with delight: "Our demon clan's reinforcements have arrived! Your immortal clan will not leave here alive today!"

A short while later, another group of demon beasts appeared in the distance, ten times larger than the previous one. They rushed towards the battlefield with great momentum and soon joined up with the previous group of demon beasts.

Shi Feihua walked to Yang Hongbo's side, his brows furrowed. "Clan Chief Yang, it seems the demon race is determined to fight us to the end. Now that their reinforcements have arrived, what should we do?"

Yang Hongbo pondered for a moment and said, "Sect Master, don't panic. Although we have powerful enemies, we are not without a way to deal with them. Our super warships and Immortal Emperor Legion are powerful. As long as we command them properly, we will definitely be able to defeat these monsters."

After saying that, Yang Hongbo gave another order: "All warships, concentrate your firepower and attack the main force of the demon beast race! The Immortal Emperor Legion will divide into small groups and fight independently, responding flexibly to the demon beasts' attacks!"

Eleven super battleships started up again, their cannons flashing even brighter, and powerful beams of energy shot towards the main force of the demon beast race. The Immortal Emperor Legion also quickly split into groups and engaged in a fierce battle with the demon beasts.

Under the overwhelming firepower of the super battleships, the main force of the demon beast race suffered heavy losses. However, they did not retreat; instead, they charged even more frantically towards the immortal race. The immortal emperors, leading their forces, used their agile movements and powerful immortal techniques to maneuver around the demon beasts, constantly inflicting damage upon them.

The five million members of the Yang family, aboard twelve flying ships, hid in the void and unleashed attacks from crystal energy cannons at the demonic beasts below.

The battle was exceptionally fierce, with both sides suffering heavy casualties. The battlefield was littered with corpses, though most of them were from the demon beast race. On the immortal army's side, the casualties were mainly among the Heavenly Immortal Realm and Immortal Lord Realm. Although they had all obtained their status through a lottery, Yang Hongbo still felt a pang of heartache seeing so many casualties.

However, there was nothing that could be done. If the Yang family and the Great Hua Emperor Sect only attacked from the void, the monsters would definitely scatter. The only way was to let the Immortal Emperor Legion attract their attention so that the warships and flying ships could slowly kill them.

After nearly half of the billions of demon beasts were killed, the demon beast army began to fall into chaos. Seeing this, the leaders of the demon beast race had no choice but to lead their troops in retreat.

At this point, the leaders of the demon beast race realized that after fighting for so long, not a single demon had appeared on the battlefield.

A tiger-shaped demon emperor asked his subordinates, "Where have all the people from the Demon Continent gone? There's not a single one in sight!"

"We hereby inform the Demon Emperor that since our race set foot on the Demon Continent, the Demon Race has vanished without a trace!"

At this moment, the Immortal Alliance also realized something was wrong. Why were they only fighting the Beastmen and not a single Demon?

The sect leader approached Yang Hongbo: "Clan Chief Yang, isn't something amiss? Where have those demons gone?"

"Demons? Are there such races here? Isn't this the Immortal Alliance Continent?" Yang Hongbo smiled as he looked at Sect Master Shi.

"Haha, it's all my fault, it's all my fault! There are no demons here, this is indeed the Immortal Alliance Continent!"

This war between immortals and demons ended in the defeat of the demons. The remaining demon offspring could at most form a few demonic sects or cults.

The unfortunate demon race, however, was tricked into this great war by the surviving demons after the demon race's great defeat, and inexplicably became the ones left holding the bag!