Through Master Xuanyangzi's description, Qin Yu knew that their trip was related to a demon king who was going to be sealed and buried.

Speaking of this demon king, it is related to a past incident in the sect five hundred years ago.

The sect where Qin Yu and Master Xuanyangzi are located is called Yunyin Sect, and looking at the entire cultivation realm, it is the top ten sects that can be ranked. However, five hundred years ago, it was the number one sect in the cultivation realm.

At that time, there was a demon king named Huang Kai, who killed innocents indiscriminately, stripped people's souls, and did all kinds of evil. As the head of the righteous path, the ancestor of the Yunyin Sect was compassionate and compassionate, and he took pity on countless living beings who were poisoned by it, so he used all the strength of the sect to crusade against him.

In the end, after a tragic battle, the cultivators, demons, and countless casualties, the ancestor of Yunyinmen was the demon king Huang Kai, who was known as the slaughter, and the one hundred and eight demon corpse soldiers who were refined with the flesh and soul of countless creatures, fought for seven days and seven nights, and finally defeated them.

However, the ancestor of Yunyinmen was also seriously injured because of this, but when he killed this demon king Huang Kai, he found that he was cruel and killed, and he killed tens of thousands of people, and a heart had already been trained like a treasure, and it was difficult to completely kill this heart no matter what method was used. In the end, the demon king Huang Kai had to be sealed together with one hundred and eight big demon corpse soldiers.

This seal is to be strengthened every hundred years, and it is time for the fifth time to be reinforced. As long as this reinforcement is carried out, in another hundred years, the demon king Huang Kai will be completely wiped out and disappear.

And the purpose of Xuanyangzi and Qin Yu's trip was to strengthen the seal.

In the past, when the Yunyin Gate sealed the Demon King, not only the head of the sect was about to arrive, but the six elders and the four Supreme Elders had to be present, but this time the situation was special, the space-time crack guarded by the Yunyin Gate encountered a "demonic moment", and a large number of monsters came to invade, so there was no way for only Xuanyangzi to come with his youngest apprentice Qin Yu.

However, Xuanyangzi is not worried, although the members of the Yunyin Sect are lacking in skills at the moment, there should be no big problem in dealing with the "Demon Chaos Moment", and he came alone to strengthen the Demon King's seal, which is more than enough, there is no problem.

As for bringing his apprentice Qin Yu with him, he just wanted to have a good experience of his favorite apprentice.

"Girl, you're stupid. Seeing that Qin Yu listened to the whole story, clenched his pink fist tightly, frowned slightly, and looked fascinated by the same enemy, as if he wished that he would be born five hundred years earlier, and kill the demon king and defend the living soul with the ignorant and masked ancestor, Xuanyangzi couldn't help but quip.

But he smiled in his heart - this disciple is simple and kind by nature, compassionate, and extremely talented. This is exactly where Xuanyangzi takes a fancy to it.

"Master, then what are we waiting for, go and seal the evil demon king!" Qin Yu clenched his fists and said with righteous indignation.

After finishing speaking, Qiong's nose suddenly wrinkled slightly, as if she smelled something, and continued: "Master, it stinks, haven't you washed your hair for a long time?"

Xuanyangzi didn't expect the topic to suddenly turn to whether he washed his hair or not, and quickly shook his head and said, "Wronged, I just washed my hair!"

Qin Yu looked at his master, obviously disbelieving, "How long has it been?"

"Not long, just half a year ago. Xuanyangzi said innocently.

Qin Yu rolled her eyes widely, her cute little nose was still sniffing around.

Xuanyangzi saw that the apprentice was serious and didn't mean to joke, so he also diverged his sense of smell.

After a while, the faces of the master and apprentice suddenly changed—it was the smell of corpses, the smell of demon corpses!

Xuanyangzi was vigilant for a while: since the demon king Huang Kaixi indiscriminately killed living beings and refined demon corpses, making them a great killing weapon with huge lethality, for five hundred years, I have never heard of anyone or demon refining "demon corpses". So where does this demon corpse stink come from at this moment?!

"Girl, there must be demons when things are impermanent, let's go and strengthen the seal of the demon king as soon as possible, and then come here to find out, and see where the demons are making trouble here!"

Qin Yu nodded.

Then the two of them suddenly disappeared from the spot, and the next moment their figures appeared three zhang away, using magical powers such as shrinking the ground into inches.

From Tiangong Forest, through Taixu City, around the Swallowing Heaven River, and then to Yin Mountain, it was a thousand miles away, but the master and apprentice only took half an hour to arrive.

However, when he looked at the door of the Demon King's Tomb that had been opened, and the empty Demon King's Tomb, the sealed Demon King's corpse chrysalis inside was completely gone, Xuanyangzi's face changed instantly!

"The demon king's corpse chrysalis is a fierce thing, which mad person dares to transport it away, is it possible that he wants to set off another bloody storm?!" Xuanyangzi's forehead was bruised, and he shouted angrily at the empty Yin Mountain.

His mind turned a hundred times at this moment - the place where the heart of the demon king was sealed was only known to the head of the Yunyin Sect for generations, even the elders and the elders who came to participate in the seal together, just like the apprentice Qin Yu at this time, were all sealed with their vision and senses, and they didn't know where they came.

Who could know that the Demon King's Heart was sealed in Yin Mountain, and just in time for the weakest power of the previous seal, and this time the seal was about to be implemented but not implemented?

Suddenly, a flash of lightning flashed in Xuan Yangzi's mind, and he thought of a person—the biggest shame of Yunyinmen since its establishment, and the person who made him the most unable to let go of his heart.

Immediately, Xuanyangzi shook his head violently and whispered to himself: "Impossible, impossible, he is dead, it must not be him!"

Xuanyangzi waved his sleeve robe, and suddenly a palm-sized flying sword with a faint brilliance flickering between the whole body flew out of his sleeve, and the sword body gradually became larger, and in an instant, it became a giant sword with a length of one zhang and a width of half a zhang, Xuanyangzi took Qin Yu to step on the sword, and then crossed the sky like a meteor and disappeared over Yin Mountain.

South of Taixu City, north of Tiangong Forest, and a secluded Taoist temple in the northeastern suburbs, where even birds and beasts rarely set foot - Yunyin Temple.

Xuancheng Taoist is white-clothed and white-robed, with kind eyebrows and kind eyes, and he looks like a fairy wind and a master. However, the nine-headed skull crutch in his hand, which exudes a thick and gloomy aura, has seriously damaged his temperament and made his whole person look a little evil and yin.

At this time, he looked at the demon king corpse chrysalis in front of him with a face full of intoxication, which had been heavily forbidden by him and covered with talisman spells, and there was a smug look in his eyes that could not be concealed, and he muttered: "After so many years of hard work, I finally got it." ”

Then, suddenly, the conversation changed, and there was endless hatred and unwillingness in his voice: "Master, senior brother, I want you to see if I am wrong! I will use facts to prove that it is you who are wrong, not me! Hahahaha!"

Xuancheng Daoren's expression was like drunkenness, excitement could not be concealed for a while, and hatred was monstrous for a while.

The Taoist boys standing on the left and right showed fear on their faces, and when they were not paying attention, they quietly retreated.

Xuancheng Taoist seemed to look at the most beautiful handicrafts in the world, carefully studying the demon king's corpse chrysalis, and was fascinated.

"What's going on?!Why doesn't the power of the Demon King's heart survive one in ten?!No, something must be wrong!"

After a day and a night, the Xuancheng Taoist roared in the cloud, as if the beloved treasure had been taken away by someone.