I, a prison guard in the Heavenly Prison, secretly became invincible thanks to the system.

Chapter 708 The oriole is behind

【Ding】

[Congratulations, host, on completing the mission: slay one ferocious demon]

[Task Reward: 500000 Comprehension Points]

The system beeped, and Ye Kang breathed a sigh of relief. The demonic form in front of him vanished, its yin energy dissipating with the wind, leaving only a rhombus-shaped black crystal falling from the sky.

Ye Kang reached out and caught the crystal. A chill burst forth from it, but unlike the chill of the Ice Soul Crystal, this chill was bone-chilling, a chill that penetrated to the spirit.

Needless to say, this must be the ghost core left behind after the evil demon was destroyed.

While observing the Ghost Core, Ye Kang guided the Pearl Shell, allowing the stored true energy to flow into his body little by little, transforming the violent demonic energy of the Demon Blood Core into true energy.

At this moment, Mei Niannian ran over with a look of horror on her face.

"My God! You killed the Four Symbols Demon!"

Mei Niannian's expression kept changing, and she completely lost her composure.

There was nothing he could do; he probably thought Ye Kang could only possess the combat power of a two-star being at most.

It's hard to believe that even the Four Fiends couldn't defeat him.

Moreover, this guy's methods are simply outrageous, varied, and all-encompassing.

He possesses both thunder magic and fist techniques, as well as the battle tactics of the Three Prefectures, and many divine weapons and magical treasures.

The last magical treasure he took out contained such icy energy that Mei Niannian couldn't help but tremble.

This is simply outrageous!

Ye Kang smiled and showed off the ghost core in his hand.

"So? How much can you sell?"

Mei Niannian compared the sizes and exclaimed, "What a pure quality! If it were at an auction, it would be worth no less than 50 medium-grade spirit crystals! It's a pity that it's only a Star Luo Realm ferocious demon. If it were a Nirvana Realm demon, it would be considered a rare and precious treasure."

Upon hearing this, Ye Kang couldn't help but feel a sense of longing.

"Heavenly treasures" is a general term that refers to extremely precious materials.

For example, a pearl made from a clam that is a hundred years old is just an ordinary spiritual material, while a pearl made from a clam that is a thousand years old can become a rare and precious material of the Yellow Rank.

If it takes ten thousand or a hundred thousand years, its grade will also become higher and higher.

The same applies to ghost cores. Ghost cores from Nirvana Realm fiends, regardless of their purity or quality, can become true natural treasures, and they are not just Yellow Rank, but Profound Rank.

Unfortunately, Ye Kang had to run away as soon as he saw a ferocious demon in the Nirvana Realm, and he couldn't even think about getting the Ghost Core.

“Fellow Daoist Ye Kang, your strength has truly exceeded my expectations. My Plum Sword Manor most enjoys making friends with young heroes. With your talent as a guarantee, I believe the transaction using the escape technique will definitely succeed.”

"Then thank you very much, Miss Niannian."

Ye Kang bowed slightly and changed his address from Miss Mei to Miss Nian Nian.

It makes you seem more approachable, giving you more room to maneuver when doing business.

The two smiled at each other, and just then, a fierce demonic aura suddenly rushed in from all directions.

Mei Niannian thought it was the demonic aura on Ye Kang and was still wondering whether this guy was human or demon.

Ye Kang's expression changed drastically, and he threw a punch with his backhand.

With a whoosh, a dark shadow rushed in, unleashing a powerful leopard claw as sharp as a steel blade.

With a single punch, the golden brass knuckles and leopard claws clashed with a deafening clang, forcing the dark figure back to the ground, slowly revealing that familiar form.

Black Panther Demon King!

"Hehehe, what a troublesome human. Even that kind of ghost couldn't defeat you. Fortunately, the Demon Emperor had the foresight to send two brothers to help me."

As soon as he finished speaking, two more imposing figures emerged from the other two directions.

A burly man with a pig's head and a human body, and a hedgehog-like man covered in sharp spikes.

With the addition of the black panther, a total of three two-star demons had completely surrounded the two without them even realizing it.

Mei Niannian's pupils contracted sharply, and she immediately put away the compass in her hand and replaced it with her longsword.

"who!"

"Oh, another new beauty, Mr. Ye, you're quite the ladies' man."

Black Panther gritted his teeth, his tone filled with resentment.

Ye Kang's face darkened as he asked, "How did you find me?"

The Black Panther Demon King scoffed, "Do you really think you're the only one with superior skills? My Blood Tracking Technique is unparalleled in the world; finding you will be a piece of cake."

The black panther raised its claws, and a drop of blood rolled between its fingers.

Ye Kang recognized it at a glance as his own blood.

It seems that I found myself through this drop of blood. Indeed, even demons are all quite troublesome.

Although Ye Kang also wanted to kill Black Panther, things were a little different when three of them came at the same time.

Black Panther sneered, "Boy, I know you're powerful, but how much strength do you have left after your battle with the ferocious demon? With your body half-crippled, do you have the confidence to fight against the three kings like us?"

"Who said he was the only one!" Mei Niannian roared angrily when she realized she was being ignored, and stood in front of Ye Kang with her sword.

But Black Panther didn't even glance at him: "Get your little beauty out of here, we're only looking for you."

"You just said Demon Emperor? Which Demon Emperor?"

"You'll find out soon enough. Come with us, and we won't kill you."

"You wish!"

Mei Niannian shouted angrily again, but Ye Kang patted her on the shoulder.

"Miss Niannian, you should go first."

"what!"

Mei Niannian thought she had misheard. Was this kid serious?!

Even an iron man couldn't withstand such a relentless battle!

Ye Kang replied telepathically, "Trust me, I won't do anything I'm not sure of. Your presence here will only make me hesitant to act. Don't forget our deal. You go first, I'll come back to you later."

"No way! I, Mei Niannian, am not the kind of person who would abandon my friends and flee alone!"

Mei Niannian thought Ye Kang was just comforting her and didn't want to implicate her, so she refused without thinking.

Ye Kang continued, "I have a way to get rid of them, but I need them to lower their guard. Please help me."

Upon hearing this, Mei Niannian hesitated for a moment and could only silently step back.

The hedgehog demon behind them indeed made way, showing no intention of causing any further trouble.

If they happened to meet, they wouldn't mind having an extra blood offering, but this was the Spider King's order, and they couldn't afford to be distracted. They would avoid getting involved if possible.

"Be careful, I'll be waiting for you in the canyon to the east."

Mei Niannian sent a final telepathic message and then quickly left, leaving only the three demons behind.

Black Panther said, "Alright, your friend is safe now. You should come with us."

"Are you so confident that I'll obey?"

"Of course you won't listen, but what does it matter? Why don't you look at your feet?"

Upon hearing this, Ye Kang was shocked. He looked down and saw circles of spider silk rise up, wrapping him up layer by layer, turning him into a rice dumpling with only his head sticking out.

Ye Kang was shocked and unleashed his physical strength, but the spider silk on his body remained motionless, tightly binding him and making it impossible for him to break free.

Black Panther laughed loudly: "As expected of the Spider King's treasure, boy, stop struggling in vain. This is the Spider King's life-bound spider silk. Once you are bound, you will not be able to escape."

The Hedgehog Demon King chimed in, "Stop talking nonsense, take him back, lest the Spider King blame us."

"Alright."

Black Panther stepped forward and grabbed Ye Kang.

It was as easy as picking up a helpless silkworm pupa.