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

Time flies, and three years passed in the blink of an eye. After diligent cultivation, Yang Hongbo reached the Saint King realm at the age of fifteen. During these three years, he pretended to study diligently under the guidance of his three masters during the day, but secretly used the system's detection function to observe all movements inside and outside the palace, looking for opportunities to exploit. At night, he cultivated the Nine Heavens Divine Art alone in his palace, and his strength continued to improve.

On this day, Yang Hongbo was cultivating in his palace when he suddenly heard footsteps outside. He opened his eyes and saw Li Quancai walk in.

"Your Majesty, this old servant has heard some news," Li Quancai said in a low voice.

Yang Hongbo's heart skipped a beat, and he asked, "What news?"

Li Quancai said, "The most powerful demon in the Azure Fox Dynasty is a tiger demon at the third level of the Saint Realm. It often causes trouble on the border of the dynasty and harms the people. Moreover, this tiger demon seems to be colluding with the fox clan."

A cold glint flashed in Yang Hongbo's eyes as he said, "This tiger demon cannot be allowed to live. Eunuch Li, do you know where its lair is?"

Li Quancai said, "This old servant has already found out that it is located in a deep mountain on the border of the imperial dynasty."

Yang Hongbo nodded and said, "Alright, I will go and meet this tiger demon tonight."

Li Quancai was shocked and said, "Your Majesty, this is too dangerous. That tiger demon is a powerful expert at the Saint Realm. Although your cultivation is profound, you cannot underestimate it."

Yang Hongbo smiled slightly and said, "Don't worry, Eunuch Li, I know what I'm doing. You may leave now, but don't make a fuss about this."

Li Quancai had no choice but to step down.

In the dead of night, Yang Hongbo quietly left the palace and flew towards the deep mountains on the border of the dynasty. Soon, he arrived at the tiger demon's cave. Using the system's detection function, he discovered that the tiger demon was fast asleep inside.

Using the power of the Demon-Suppressing Bell, Yang Hongbo set up a barrier outside the tiger demon's cave, so that no matter what happened inside the barrier, the outside world would not know.

Yang Hongbo stealthily entered the cave and approached the tiger demon. He drew his demon-slaying sword, activated his Nine Heavens Divine Skill, and thrust the sword fiercely at the tiger demon. The tiger demon was startled awake, letting out a roar and trying to resist. But Yang Hongbo's sword was too fast and too ruthless, piercing its heart in a single strike.

The tiger demon stared wide-eyed at Yang Hongbo in disbelief, and said, "You...who are you? Why...why do you want to kill me?"

Yang Hongbo coldly said, "I am Yang Hongbo, the emperor of the Qinghu Dynasty. You tiger demon, you have harmed the people and colluded with the fox clan. You deserve to die."

The tiger demon roared, "The fox clan will not let you get away with this..."

Before he could finish speaking, the tiger demon breathed its last. Yang Hongbo sheathed his demon-slaying sword, stored the tiger demon's corpse in his spatial storage, and then quietly left the cave.

After leaving the tiger demon's cave, Yang Hongbo did not rush back to the palace. He knew that within the Azure Fox Dynasty, there must be many demons like the tiger demon who had committed numerous evil deeds. He decided to continue exploring the territory of the dynasty and eliminate these demons who were harming the people one by one.

Yang Hongbo used his movement technique, darting through the mountains and forests like a ghost. With the help of the system's detection function, he quickly discovered another place filled with demonic energy. It was a gloomy valley, filled with eerie mist, and from time to time, chilling roars could be heard.

Yang Hongbo cautiously approached the valley, and as soon as he reached the entrance, he heard a quarrel coming from inside.

"You wolf demon, stop fighting with us for territory, or you'll die a horrible death!" a hoarse voice said viciously.

"Hmph, you? You're just a half-baked snake demon, yet you dare to be so insolent in front of me!" Another voice was full of disdain.

Yang Hongbo's heart stirred, and he quietly sneaked into the valley. In the open space of the valley, he saw a wolf demon at the fifth level of the Condensation Realm and a snake demon at the fourth level of the Condensation Realm facing each other, with some lesser demons surrounding them.

The wolf demon was tall and imposing, its fur disheveled and reeking of a foul stench. It grinned, revealing sharp fangs, and let out a low growl. The snake demon, on the other hand, lay coiled on the ground, its body as thick as a tree trunk, its scales shimmering with a cold, eerie light. Its triangular head was held high, its tongue flicking.

Yang Hongbo used the Demon-Suppressing Bell again to set up a barrier here before coming out.

"You two have committed countless evils within the territory of this dynasty, today is your day of death!" Yang Hongbo shouted as he stepped out from the shadows.

The wolf demon and the snake demon were taken aback at first, then burst into laughter at the same time.

"Where did this brat come from, daring to spout such nonsense!" the wolf demon mocked.

The snake demon said in a sarcastic tone, "Boy, with your delicate skin, you're perfect as a snack for me!"

Yang Hongbo sneered and said, "I am Yang Hongbo, Emperor of the Qinghu Dynasty. You have harmed the people, and today I will act on behalf of Heaven!"

"Emperor? Hmph, so what if you are the emperor? In this valley, you only have one way out: death!" the wolf demon said, and suddenly pounced on Yang Hongbo.

Yang Hongbo dodged the wolf demon's attack with a swift movement, simultaneously unleashing his Nine Heavens Divine Skill and striking the wolf demon with a palm. Unable to dodge in time, the wolf demon was struck, letting out a miserable howl as it flew backward and crashed heavily to the ground.

Seeing this, the snake demon seized the opportunity to attack. It shot towards Yang Hongbo like lightning, spewing out a stream of black venom. Yang Hongbo remained calm, using his agility to dodge the venom, then drew his demon-slaying sword and slashed at the snake demon. Unable to dodge in time, the snake demon was struck by the sword and let out a painful hiss.

"What...what level of cultivation do you have?" the wolf demon asked in terror.

Yang Hongbo coldly said, "How could you monsters possibly know the extent of my cultivation? Prepare to die!"

As he spoke, Yang Hongbo launched another attack. The demon-slaying sword was wielded in his hand with impenetrable speed. As the sword light flashed, the wolf demon and snake demon gradually could not withstand the attack and were covered in wounds.

"Spare...spare us..." the wolf demon and the snake demon begged for mercy at the same time.

Yang Hongbo stopped his attack, looked at them coldly, and said, "I can spare your lives, but you must answer my questions truthfully."

The wolf demon and the snake demon nodded hurriedly and said, "Your Majesty, please ask. We will certainly tell you the truth."

Yang Hongbo asked, "Within this dynasty's borders, what other demon races are as wicked as yours?"

The wolf demon and the snake demon exchanged a glance, and the wolf demon said, "On a desolate mountain in the western part of the dynasty, there is a group of bat demons at the ninth level of the Divine Refinement Realm. They often suck human blood and are extremely cruel."

The snake demon added, "There's also a swamp in the eastern part of the dynasty where there's a crocodile demon at the eighth level of the Concentration Realm. It often devours passersby and livestock."

Yang Hongbo nodded and said, "Very well, I will spare your lives for now. But if you dare to commit evil again, I will not let you off easily!"

The wolf demon and snake demon hurriedly kowtowed to express their gratitude, but just as they were kowtowing with their little demons, they were caught off guard and had their heads sliced ​​off by the demon-slaying sword.

Humans and demons are mortal enemies, so why should we keep our promises to them!

After leaving the valley, Yang Hongbo followed the clues provided by the wolf demon and snake demon, first arriving at the desolate mountains in the western part of the dynasty. In a cave in the desolate mountains, he found the group of bat demons. These bat demons were enormous, with wingspans of several meters. They hung upside down from the cave ceiling, emitting sharp cries.

Yang Hongbo set up the barrier again, entered the cave, and shouted, "You monsters, why don't you quickly prepare to die!"

Startled awake, the bat demons spread their wings and swarmed towards Yang Hongbo. Yang Hongbo activated his Nine Heavens Divine Skill, his body radiating a golden light that deflected their attacks. Then, he drew his Demon-Slaying Sword and slashed the bat demons one by one as easily as cutting melons and vegetables.

After dealing with the bat demon, Yang Hongbo rushed to the swamp in the eastern part of the dynasty. In the swamp, he encountered the crocodile demon. The crocodile demon was huge, its body covered with hard scales. It opened its blood-red mouth, revealing sharp teeth, and pounced on Yang Hongbo.

Yang Hongbo moved nimbly, easily dodging the crocodile demon's attacks. Then, seizing the opportunity, he thrust his sword towards the crocodile demon's eye. The crocodile demon roared in pain and attacked Yang Hongbo even more frantically. Yang Hongbo remained calm, maneuvering around the crocodile demon, searching for its weakness. Finally, after the crocodile demon missed its target, Yang Hongbo saw his chance and pierced its heart with his sword.

During the process of eliminating these demons, Yang Hongbo encountered some children and young people whose families had been destroyed by the demons, with only one survivor. He felt pity for them and decided to train them all to be his trusted confidants.

He brought these people back to the vicinity of the imperial city, providing them with cultivation resources and techniques, and personally taught them cultivation. Under Yang Hongbo's careful guidance, these people's strength gradually improved.

Among them was a boy named Lin Feng, whose parents had been killed by the demon race, leaving him all alone. Lin Feng was extremely talented and hardworking, and under Yang Hongbo's tutelage, he made rapid progress.

"Your Majesty, thank you for saving my life and for your guidance. I, Lin Feng, will follow you to the death!" Lin Feng knelt before Yang Hongbo and said gratefully.

Yang Hongbo helped Lin Feng up and said, "Lin Feng, you don't need to do this. It is my duty to eradicate the demon race and protect the people. You should all cultivate diligently and protect the Qinghu Dynasty with me in the future."

Through Yang Hongbo's efforts, a group of loyal and capable confidants gradually gathered around him. To this end, he established a Demon Slaying Division, vowing to do everything in his power to hunt down the demons who plagued the world.