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

It was a pitch-black night with torrential rain, and the roars of beasts echoed all around. Yang Hongbo stood on a cliff with his sword in hand, and below the cliff was a giant monster that was nearly twenty meters tall.

This is a demon emperor-level earth dragon beast. Yang Hongbo has been chasing it for more than a month. Today, it has finally stopped running away and is going to fight Yang Hongbo to the death.

The Earth Dragon Beast has summoned dozens of the most powerful monsters in the vicinity to help it. Tonight, either their side will be wiped out or the enemy will be dead.

Looking down at the dark cliff, Yang Hongbo waited quietly. He wouldn't go down casually; there was an ancient formation below, and only the earth dragon beast that came out of there knew how terrifying it was.

Soon, dozens of demon kings and demon emperors surrounded Yang Hongbo. In fact, these demonic beasts were nothing to Yang Hongbo; they could be dealt with in a sword strike or two.

However, with a demon emperor stirring up trouble beside him, he still had to be careful and vigilant, lest he be caught off guard and suffer a loss!

Yang Hongbo suddenly sprang up, unleashing a powerful sword aura with his sword, instantly killing the dozen or so demonic beasts on his right, mainly the demon kings.

The dozens of demon kings behind him immediately launched a deadly charge at Yang Hongbo, but Yang Hongbo leaped away after killing more than a dozen demon kings, avoiding their attacks.

With another swift sword strike, he killed more than a dozen demon kings. Meanwhile, the earth dragon beasts below the cliff had quietly climbed to the top of the mountain, preparing to teach Yang Hongbo a lesson from there.

Yang Hongbo stood quietly, waiting for the monsters to attack again. The torrential rain kept hitting his protective aura, but it only splashed up a few water droplets.

Neither side dared to make a move, but Yang Hongbo's consciousness returned to a month ago.

This is a megacity with nearly 30 million people. In the city is his beloved woman. They have been together for more than ten years, protecting and understanding each other.

That day, he said to her, "Ling'er, your birthday is in a few days. I found a century-old Holy Spirit Fruit in a cave somewhere, and it will ripen in the next day or two."

"You are currently at the peak of Martial Emperor. As long as you consume this Holy Spirit Fruit, you will have at least a 70% chance of advancing to Martial Emperor. At that time, we will be a married couple who are both Martial Emperors."

"I'll set off tomorrow to pick it and give it to you as a birthday present. You can start preparing your birthday party in the city first."

"Brother Yang, is it dangerous there? Do you want me to go with you?"

"No need. A mere Holy Spirit Fruit is enough for me, a Martial Emperor. Just wait to be revered by millions at the banquet!"

"Alright then, Brother Yang, I'll be waiting for your return in the city."

The next day, Yang Hongbo embarked on the journey to harvest the Holy Spirit Fruit. In the days that followed, he killed hundreds of demon kings and demon emperors, and finally the Holy Spirit Fruit ripened.

However, what he didn't know was that a demon emperor-level earth dragon beast had actually invaded the city he was protecting.

The city's guardian deity, Emperor Yang Hongbo, is absent. There are only a few Martial Emperors left in the city, including Yang Hongbo's lover. For the safety of the entire city, they have no choice but to step forward and fight against the Earth Dragon Beast, which is at the level of a Demon Emperor.

Fortunately, this earth dragon beast had just advanced to the Demon Emperor realm and needed to consolidate its power through battle. Therefore, during the two days and two nights of battle, the Martial Emperors only suffered minor injuries.

However, the Earth Dragon Beast soon sensed an extremely strong fighting spirit rapidly approaching. Feeling somewhat alarmed, the Earth Dragon Beast immediately activated its innate ability: Emperor Beast Domain.

The main function of this talent is to ignite the blood of others within the area, ultimately leading to an explosion.

From afar, Yang Hongbo saw several Martial Emperors, including his lover, suddenly explode into a cloud of blood mist.

Enraged and shocked, Yang Hongbo roared and sped off after the Earth Dragon Beast, who also turned and fled.

The Earth Dragon Beast relentlessly pursued Yang Hongbo, constantly summoning nearby demonic beasts to intercept him. However, these little creatures, whose highest rank was no more than Demon Venerable, could not even withstand the aura of Martial Emperor Yang Hongbo and died as soon as they emerged.

However, even if the interception only lasted for a second or two, it was enough for the Earth Dragon Beast to escape for dozens of miles.

More than a month passed in this chase and escape. The earth dragon beast, exhausted from being chased, collapsed to the ground as soon as it escaped back into the ancient formation.

Standing on the cliff, Yang Hongbo quietly watched it. It couldn't help but roar, "Human, I only killed a few of your Martial Emperors! Was it worth your relentless pursuit?"

"Among those you killed was my lover!"

"Uh!" Instantly, the earth dragon beast regretted its actions and hurriedly said, "Human Martial Emperor, I can compensate you with a large amount of rare and precious materials. I hope you can let me go."

"I don't need that, I just want your life!"

"Human, I am also a Demon Emperor. Aren't you afraid that we'll fight to the death?"

"It won't be a lose-lose situation. If you come out, I guarantee you'll die!"

With no other option, the Earth Dragon Beast could only summon nearby demonic beasts to help, but most of the low-level demonic beasts could not withstand the pressure of the Martial Emperor alone, so only the Demon King and the Demon Emperor came over.

And so, the scene at the beginning occurred.

The Earth Dragon Beast was also waiting for Yang Hongbo to make a mistake, but Yang Hongbo's consciousness had already firmly enveloped the Earth Dragon Beast.

As long as the Earth Dragon Beast makes any move, Yang Hongbo will teach it a profound lesson.

At this moment, the remaining dozens of demon kings began to move. They scattered and attacked Yang Hongbo from all directions, but Yang Hongbo was fearless and poured out boundless sword energy in all directions.

It's just that these demon emperors were too scattered; otherwise, they would have been wiped out long ago.

The earth dragon saw an opportunity and suddenly made a move, but as soon as it made its move, it discovered that an even more dazzling sword aura was slashing horizontally towards it.

The earth dragon beast quickly spat out a mouthful of earth dragon fire, and after a loud explosion, a huge crater was blasted into the ground.

Even though it was pouring rain, beads of cold sweat rolled down the forehead of the Earth Dragon Beast.

The Earth Dragon Beast hurriedly fled back into the great formation to continue waiting for an opportunity, but it summoned too few demonic beasts. With only a few demonic beasts left, the Earth Dragon still couldn't find a moment to strike.

When the last demon king fell under Yang Hongbo's sword, the earth dragon beast was already cowering in the great formation, trembling with fear. It really regretted it. Why was it so stupid to choose that city to attack?

Yang Hongbo could not wait any longer and began to use his sword energy to fiercely strike the ancient formation. One day, two days, three days passed. When he was about to exhaust himself, Yang Hongbo would take pills to recover while pouring sword energy onto the formation's light screen. Perhaps because this ancient formation was too ancient, spiderweb-like cracks began to appear on the light screen after a few days.

The Earth Dragon Beast became even more bewildered and immediately roared at the top of its lungs, "Human Martial Emperor, can't you just let me go? Is it necessary to fight so desperately? Let me go! I can become your contracted beast!"

"No need, it's best if you become a corpse!"

After a violent explosion, the great formation shattered, revealing the wounded body of the Earth Dragon Beast. It hurriedly began to fight Yang Hongbo, but its combat strength was already lower than Yang Hongbo's, and after taking several sword energies, the wounds on its body increased.

Finally, with no other choice, the Earth Dragon Beast detonated its demon core. As a terrifying mushroom cloud rose, everything returned to calm.

In the distance, a brilliant sunrise was slowly rising, but Yang Hongbo's heart could no longer return to the past.

A voice echoed in my mind: Time Tunnel Level 4 Cleared!