Cao Cheng's qualifications were not ordinary, coupled with the fact that the Demon Dragon Tianzun was willing to spend blood on him, the beast would naturally not be bad, and sure enough, after Cao Cheng's "whoop" roar, his body grew rapidly, and a bright horn grew on his head, and the fine cyan scales glowed with a little blue light, rolling down in the ground, and in a moment he turned into a fierce beast the size of a small mountain, with scarlet eyes, which was daunting.

The fierce fierce beast opened its bloody mouth, and a bolt of lightning struck, hitting the iron chain in the right hand of the Demon Dragon Tianzun, but the iron chain only made a "bang" sound, and there was no change, and the fierce fierce beast also turned back to Cao Cheng like a deflated ball, "The disciple is incompetent, please punish the master." ”

Although the lightning strike did not cause any damage to the chain, the Demon Dragon Tianzun did not seem disappointed, but laughed out loud, "Sure enough, you are a good disciple for the teacher, you can have this heart, and you are already very happy to be a teacher." ”

Cao Cheng had his own plans in his heart, and after turning into a beast just now, he didn't expect his blow to cause any damage to the iron chain, and everything was just for the Demon Dragon Tianzun to see. Half an hour, just half a quarter of an hour Demon Dragon Tianzun let him evolve from an ordinary person to an existence that can be proud of mortals, given time, what Cao Chong, Cao Pi, and Cao Zhi don't all have to look up to themselves, as for the so-called prime minister of his father Cao Cao, what is it, as long as he wants to sit in the world, who can stop him! But this still needs the careful teaching of Demon Dragon Tianzun, so that he can stand at the peak of cultivation, so he must respect Demon Dragon Tianzun.

Cao Cheng pretended to be dejected, "Alas, thanks to the master for refining the form essence for the disciple, and giving this precious pill to the disciple, but the disciple still lived up to your old man's expectations, the master was trapped, but the disciple couldn't help at all, the disciple was really ashamed!"

The Demon Dragon Tianzun is quite useful to Cao Cheng's sycophants, and treats Cao Cheng with unprecedented gentleness, which Na Zi has never seen in so many years with him, "It's okay, it's not difficult to restore the cultivation of the Demon Venerable to the teacher." ”

"Oh, is there any way Master can't do it?" Cao Cheng asked anxiously.

"On the top of this cave where we are located, there is a natural stone platform, and the human emperor seal is suppressed on it, as long as you move the human emperor seal away from the stone platform, it will naturally collapse, and these iron chains trapped as a teacher will not be afraid at all at that time. Demon Dragon Tianzun looked at Cao Cheng expectantly.

"Master, since it's okay to remove the human emperor seal, then why didn't you send Na Zi there before?" Cao Cheng asked suspiciously.

"Don't you know, that human emperor seal is the supreme treasure of the human race, and non-human aliens can't touch it at all. Demon Dragon Tianzun explained.

"Disciples are human beings, why didn't Master send disciples there just now?" Cao Cheng asked again.

Demon Dragon Tianzun was extremely patient at this moment, and explained: "Before refining your form and marrow, you were just an ordinary man, and that person's imperial seal weighed more than a thousand gold, how could you hold it with a mortal body." ”

Cao Cheng pretended to have a sudden realization, "In this way, the disciple will understand, Master, the disciple will ask for the order to go to the Honkai Emperor Seal now." As he spoke, Xiang Demon Dragon Tianzun knelt down on one knee.

"Okay", the Demon Dragon Tianzun was very excited with an indescribable joy, and turned to Na Zi and said, "Na Zi!"

"The subordinates are here!" Nazi clenched her fists.

"This seat orders you to transform into your original body, and carry the young master to go to the Honkai Human Emperor Seal, there must be no mistake!" the Demon Dragon Tianzun commanded.

"Subordinates obey!" Na Zi bowed.

Na Zi, which Zijiao turned into, has a very good face, and under a pair of big apricot kernel-like watery eyes is a small and delicate Yao nose, which complements each other with two thin pieces of red dust, and in addition to the concave and convex, slender and well-proportioned figure, like a fairy outlined in the painting, without a trace of fireworks, looking at Cao Cheng's eyes, he can't help but feel a little hot in his lower abdomen. Thinking that he would ride her under him for a while, a wave of lust came to my heart.

Na Zi seemed to notice Cao Cheng's unusual eyes, which made her goosebumps all over her body, and she felt very disgusted, but the Demon Dragon Venerable gave an order, so she had to say to Cao Cheng coldly and go, and took the lead to walk outside the cave.

Walking to the entrance of the cave, Na Zi turned into a purple dragon, several feet long, the whole body shook, the tail swept out and suddenly rolled up Cao Cheng still on his back, and flew upwards violently.

Cao Cheng was not afraid, but stroked Na Zi's body with both hands intentionally or unintentionally, making Na Zi feel a wave of nausea in her heart, "If you move again, I will throw you down the mountain stream, it's a big deal that I will cut myself in front of the old master!"

"Aren't I afraid of falling, that's why I caught you, okay, okay, I'll try not to move, we still have to hurry up and go to the Honkai Emperor to rescue the master." Cao Chengmeizi said.

Fortunately, Na Zi is now Zijiao's original body, otherwise she would definitely be able to see the iron blue color on her face, "For the sake of the old master, I don't bother to worry about you, you sit down, don't move again." ”

Na Zijiao's body was pulled upwards again, and not far away, Cao Cheng clearly saw the stone platform, the so-called human emperor seal on the stone platform, if you don't carefully distinguish it, it is already a square stone the size of a human head and decay, but even so, it still contains great mana that can suppress a demon like the Demon Dragon Tianzun below.

"Don't do it yet!" Na Zi saw that Cao Cheng was looking at the human emperor seal in a daze, and couldn't help urging.

To be honest, if it is possible, Cao Cheng is extremely reluctant to destroy this person's imperial seal, he doesn't know what kind of crazy actions the Demon Dragon Heavenly Respect will have after he is freed, but the truth is often different from the idea, his greed for obtaining powerful abilities still suppressed other thoughts, gritted his teeth, and grabbed the human emperor seal with both hands the size of a human head, "Bang" With a bang, at the moment when Cao Cheng touched the Human Emperor Seal, the Human Emperor Seal instantly collapsed and exploded into a piece of rubble, and the shock wave of the explosion made Na Zi, who was hanging in the air, suddenly overturned, and a few pieces of broken stone even made a few deep blood marks on her body, revealing the bright red flesh that was turned outward.

Cao Cheng was even more embarrassed, in addition to his face, his body was also hit by countless pieces of rubble, fortunately, after he entered the realm of demon refining, he gave birth to hard and fine scale armor all over his body, and the broken stones hit his body only hurt, and did not cause particularly big damage, he was blasted straight into the sky by the shock wave of the explosion, the speed was like a meteor crossing the sky, flying to the highest point, and falling vertically into the mountain stream, the sound of "ah, ah" constantly echoed in the valley. Na Zi endured the pain all over her body, stabilized her body, and slammed in the direction of Cao Cheng's fall, and Jiao Wei flicked and rolled up Cao Cheng's falling body.

At this moment, there was a loud bang in the cave they were in not long ago, and the rubble at the entrance of the cave was splashed, and a huge black dragon waved two huge meat wings in the smoke and dust, and in a flash, it turned into a demon dragon Tianzun and stood proudly in the air.

The Demon Dragon Tianzun let out a long roar that shook the earth to vent his depression for more than a thousand years, "This seat is free, human beings... Wait, I'm going to kill you all!"

"Congratulations to Master and Master for regaining their freedom!" Cao Cheng and Na Zi, who had re-transformed into a human form, knelt down on the cliff of the cliff and congratulated the Demon Dragon Tianzun.

"It's been more than a thousand years, and this seat has finally regained its free body, but I hate Fu Xi's house, and I have knocked down the cultivation of this seat for more than 800 years, otherwise with the transformation of this seat back then, I would have already stepped through the void and returned to the demon world, it's really annoying!