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

Following the direction indicated by the demon, Yang Hongbo and the puppet quickly arrived at the location of a fifth-tier spiritual vein. The area was brimming with spiritual energy, and the surrounding land emitted a faint glow. Yang Hongbo excitedly rubbed his hands together: "Haha, this is indeed a good thing!"

He cast a spell and began to collect the spiritual veins. With each incantation, the spiritual veins were gradually compressed, eventually transforming into a stream of light that Yang Hongbo collected. Next, they found several other fifth- and sixth-tier spiritual veins and collected them one by one.

After collecting the spiritual veins, Yang Hongbo led the puppets to places where special spiritual herbs and medicines grew. In a dark valley, they discovered a patch of spiritual herbs emitting a strange light. These herbs were surrounded by a faint black aura, clearly influenced by the environment of the Demon Realm.

Just as Yang Hongbo was about to step forward to pick the herbs, a group of Nascent Soul stage demons suddenly surged out from around them. These demons surrounded Yang Hongbo and his puppet, and the leader sneered, "Boy, these spiritual herbs are guarded by us. How dare you try to steal them? Today, you'll never leave alive!"

These little demons only used these spiritual herbs as bait in a trap. Unfortunately, the demon realm expanded too quickly, and no one came for hundreds of years. Unexpectedly, heaven rewards those who persevere, and they finally opened for business today.

Yang Hongbo curled his lip in disdain: "You little punks? Come at me all at once, save me the trouble of wasting my time."

Upon hearing this, the demons roared and charged towards Yang Hongbo. With a thought, Yang Hongbo's puppet instantly unleashed a powerful barrage of attacks, sweeping towards the demons like a storm. Screams filled the air as many demons were sent flying by the puppet, collapsing severely injured.

The leading demon was shocked upon seeing this; it hadn't expected Yang Hongbo's puppet to be so powerful. Its eyes darted around, and it suddenly launched a sneak attack on Yang Hongbo, intending to capture the leader first.

Yang Hongbo was prepared. He dodged the demon's attack with a swift movement, then struck out with a backhand palm. The powerful force sent the demon flying, spitting out a mouthful of demonic blood in mid-air before crashing heavily to the ground.

"You dare to ambush me with such a paltry trick? You're just asking for death," Yang Hongbo said coldly.

Seeing their leader defeated, the remaining demons scattered in terror. Yang Hongbo did not pursue them. He walked to the spirit herbs, carefully picked them, and put them into his storage ring.

"These spiritual herbs and medicines are all good things. Taking them back and refining them into pills will definitely be of great benefit to the cultivation of the family's cultivators," Yang Hongbo thought to himself.

Next, Yang Hongbo and the puppet continued their exploration on the outskirts of the Demon Realm, encountering several more waves of demons at the Nascent Soul and Spirit Transformation stages. Some of these demons wanted to seize the treasures on Yang Hongbo's body, while others simply wanted to devour his essence and soul. But without exception, they were all easily repelled by Yang Hongbo and the puppet.

After a battle, Yang Hongbo looked at the corpses of demons and ghosts scattered on the ground and said to the puppet, "Although the outer edge of this demon and ghost domain is not dangerous for us, these demons and ghosts are really annoying and always cause trouble."

The puppet emitted a buzzing sound, seemingly in agreement. Yang Hongbo continued, "Fortunately, we've reaped a rich harvest. These spiritual veins, herbs, and medicines are enough to elevate the family's strength to another level."

Just then, the spirit's voice rang in his mind again: "Master, I sense an abnormal fluctuation of spiritual energy in a place ahead, as if there is some powerful treasure there."

Yang Hongbo's eyes lit up: "Oh? A powerful treasure? Let's go take a look."

He led the puppet swiftly in the direction the spirit had indicated. Soon, they arrived at the entrance to a secluded cave. A faint layer of black mist lingered around the cave, giving it an eerie feel.

Yang Hongbo looked at the cave, feeling somewhat hesitant: "I don't know what dangers are in this cave, but since there are treasures inside, I can't give up so easily."

He said to the puppet, "You lead the way, let's be careful."

The puppet nodded and entered the cave first. Yang Hongbo followed closely behind, proceeding cautiously. The cave was dimly lit, with eerie lights flickering on the surrounding walls.

Suddenly, a deep roar came from ahead, followed by a gigantic figure appearing before them. It was a demonic ghost at the peak of the Void Realm, its body as large as a small mountain, radiating a powerful aura.

The demon glared at Yang Hongbo and the puppet, roaring, "Who are you? How dare you trespass on my territory!"

Yang Hongbo sneered, "We're just passing through. We heard there's treasure here and wanted to take a look. If you know what's good for you, get out of the way, or don't blame me for being impolite!"

Upon hearing this, the demon flew into a rage: "What arrogance! None of you will leave here alive today!" With that, the demon brandished its enormous claws and pounced on Yang Hongbo and the puppet.

A battle, though not particularly fierce, ensued. Yang Hongbo and the puppet worked in perfect harmony, battling the demon. Although the demon was quite powerful, it quickly found itself at a disadvantage under the combined attacks of Yang Hongbo and the puppet.

After dozens of rounds of fighting, the Void Realm Puppet found the demon's weakness and unleashed a powerful spell, defeating the demon in one fell swoop. The demon fell heavily to the ground, turning into a cloud of black mist and disappearing without a trace.

Yang Hongbo breathed a sigh of relief and said to the puppet, "Finally solved. Let's see what treasures are in this cave."

They searched the cave carefully and soon found a circular barrier radiating multicolored light in a corner. Yang Hongbo excitedly walked over, used his spiritual power to open the barrier, and saw a spiritual herb inside that emitted a powerful spiritual energy.

"This...this is a ninth-grade spiritual medicine!" Yang Hongbo exclaimed in surprise. He hadn't expected to find such a precious treasure on the outskirts of the Demon Realm.

Over the next month, Yang Hongbo led his puppets to explore the outer reaches of the Demon Realm one by one, not only killing many malevolent demons and ghosts, but also finding many precious treasures.

That day, Yang Hongbo discovered another patch of spiritual herbs in a canyon. Most of them were of the seventh rank, with a few reaching the eighth rank. These spiritual herbs were called Seven-Colored Profound Yang Grass, which was suitable for humans to improve their physical strength.

Just as they arrived at the spiritual herb, a zombie at the peak of the Returning to the Void realm emerged from the ground beside it. A zombie at the Returning to the Void realm is no different from a human, except that it has no life force.

It roared at Yang Hongbo, "Boy, are you coveting my elixirs?"

It turns out that these medicinal herbs also have an effect on zombies, which is why it has been guarding this place.

Yang Hongbo had the Void Realm puppet hold the line while he sparred with the opponent first.

The battle began, and Yang Hongbo first used the Extreme Yang Immortal Light Sword. The zombie was hit by the scattered immortal light, and its skin began to hiss. It hurriedly dodged away.

The zombie could only use its corpse energy and claws for close-range attacks, while Yang Hongbo had been using ranged attacks, so the zombie was teased and roared wildly.

After maneuvering it for dozens of moves, Yang Hongbo ordered the puppet, "Destroy it, it's no fun!"

So the Void Realm puppet used Thunderbolt, and a bolt of lightning descended from the sky, turning the zombie into ashes.

Yang Hongbo collected the medicinal herbs and said to the puppet, "This exploration of the Demon Realm has been very fruitful. We should head back now."

After saying this, Yang Hongbo led the puppet out of the cave and flew towards Qingmang City. Along the way, he pondered how to use these treasures to enhance his family's strength and make the Yang family more firmly established in the cultivation world.