In the past, when Lingfeng integrated other techniques into Hunyuan Star Jue, he only incorporated the essence of those techniques into Hunyuan Star Jue.

But now, facing the Book of Chaos, Ling Feng didn't know where to start.

Because the Book of Chaos is so perfect in Ling Feng's eyes, the Book of Chaos is highly consistent with his body.

Therefore, Ling Feng couldn't find anything wrong with it in the Book of Chaos.

Although Ling Feng also knows that the Book of Chaos he has now is not perfect, it is only a five-star Book of Chaos, and it can only be practiced in the immortal realm.

Even so, Ling Feng can't find any shortcomings in the Book of Chaos now.

Ling Feng knew in his heart that he could not find the shortcomings of the Chaos Heavenly Book now because his cultivation and realm were not enough.

Only when he reaches that level can he find out the shortcomings of the Chaos Book.

Ling Feng began to integrate the Hunyuan Star Technique into the Chaos Heavenly Book.

Although integrating the Hunyuan Star Technique into the Chaos Heavenly Book would not increase the effectiveness of the Chaos Heavenly Book much, Ling Feng still did it. After all, for Ling Feng, even if it could only improve a little, it would be good.

Because the Chaos Heavenly Book was too powerful, when Ling Feng integrated the Hunyuan Star Jue, it went smoothly and very quickly.

Because the endurance and tolerance of the Book of Chaos is too strong.

It only took Ling Feng half an hour to integrate the Hunyuan Star Jue into the Chaos Heavenly Book.

The Chaos Heavenly Book, which was integrated with the Hunyuan Star Technique, only improved a little bit in terms of cultivation effect.

Ling Feng continued to practice.

The surrounding spiritual energy continued to gather towards Ling Feng.

The huge spiritual energy formed a storm over the square, and Ling Feng was the center of the storm.

"This guy is making rapid progress!"

The guardian looked at the storm above Ling Feng's head and thought to himself.

He knew that the Book of Chaos that Ling Feng obtained was only a five-star one. After he obtained the five-star Book of Chaos, he had to practice for a full hundred years to achieve such results.

But from the beginning of Ling Feng's practice till now, he has not even had one stick of incense.

"Isn't this progress too fast?"

The guardian was a little surprised.

He stared at Ling Feng, with some excitement on his face: "This kid has great talent, but I don't know how many levels he can pass!"

If Ling Feng could pass all the levels, then he wouldn't have to stay in Tianwu City.

However, the guardian also understood in his heart that the levels left by the Chaos City Lord were too difficult. It was too difficult to meet all the standards, and the chance was very slim.

Thinking of this, the guardian felt a little discouraged again.

A month later, Ling Feng finally cultivated the Heavenly Book of Chaos to a perfect state. The speed at which he absorbed and refined energy finally reached the limit that the five-star Heavenly Book of Chaos could achieve.

"I will practice hard and strive to obtain the six-star Book of Chaos as soon as possible!"

Ling Feng thought secretly in his heart.

He knew that the six-star Book of Chaos would be more effective in cultivation.

Ling Feng opened his eyes and looked towards the surrounding square. He did not find the guardian.

He shouted into the void: "Senior?"

As soon as Ling Feng finished speaking, the guardian immediately appeared in front of Ling Feng.

He opened his mouth and asked Ling Feng, "What's the matter?"

Ling Feng looked at the guardian and said, "Senior, can I leave Tianwu City?"

The guardian nodded slightly and said: "Yes, but the time you leave Tianwu City cannot exceed a thousand years. In other words, you must return to Tianwu City once within a thousand years!"

"Why do you have to come back once a thousand years?"

Ling Feng looked at the guardian with some confusion.

The guardian said: "If you don't come back in time, the inheritance mark in your body will dissipate, and you will no longer be able to enter Tianwu City. When your inheritance mark dissipates, Tianwu City will consider you to have given up the inheritance!"

"Inheritance mark? When did I get the inheritance mark?"

Ling Feng was slightly startled, and the look of doubt on his face became even stronger.

The guardian looked at Ling Feng, and then asked: "You don't have the inheritance mark?"

"Yes, what does the inheritance mark of Tianwu City look like?"

Ling Feng nodded slightly and looked up at the guardian.

The guardian stared at Ling Feng, and his eyes instantly became sharp.

Ling Feng felt that the guardian's eyes were scary, but he did not flinch.

After the guardian stared at Ling Feng for a while, he opened his mouth and said to Ling Feng: "Come here!"

Ling Feng immediately walked to the guardian.

"Close your eyes!"

The guardian spoke again.

Ling Feng immediately closed his eyes.

Then, the guardian put his hand on Ling Feng's forehead.

Ling Feng felt a stream of cold air pouring into his body, and this stream of air surged all over his body instantly.

After a while, the guardian withdrew his hand and looked at Ling Feng, the wrinkles on his forehead getting deeper.

The guardian had just checked and found that there was no inheritance mark in Lingfeng's body at all.

He opened his mouth and said to Ling Feng: "How did you get in?"

"I?"

Ling Feng looked at the inheritor and hesitated in his heart. Then he raised his hand and activated the secret technique of Lingxi Finger.

The guardian's eyes fell on Ling Feng's hand.

He also felt the special fluctuations coming from Ling Feng's hand.

Ling Feng said: "There is an invisible force protecting the outside of Tianwu City. I used this secret method to break through this invisible force and then came in!"

The guardian reached out and touched Ling Feng's hand, feeling for himself the mystery of the secret technique of Lingxi Finger.

After feeling it, the guardian looked at Ling Feng and sighed: "Could this be God's will?"

"What providence?"

Ling Feng looked at the guardian with confusion.

The guardian looked at Ling Feng, was silent for a while, and then said: "According to the rules of Tianwu City, only those who have obtained the inheritance mark can enter Tianwu City. Before you showed up, there were more than one million inheritances in front of you.

It’s all like this!”

"But I came in!"

Ling Feng opened his mouth and answered.

"This is what I don't understand!"

The guardian looked at Ling Feng and continued: "Maybe you are an exception. Even the city lord cannot make everything perfect. Although Tianwu City was refined by the city lord, it does not mean that Tianwu City must be perfect.

You can only come in with the inheritance mark, and your appearance is proof!"

"What should we do now?"

Ling Feng looked at the guardian, he was a little scared now.

In the past, people came in legitimately. If he followed the rules of Tianwu City, he was breaking in illegally. He was afraid that the guardian would kill him.

The guardian seemed to see through what Ling Feng was thinking. He smiled slightly and said, "You don't have to be afraid. Since you can enter Tianwu City, it means that you are destined to Tianwu City, and judging from your current performance, your talent is

Very good, I will definitely not take action against you!"
Chapter completed!