More than twenty years ago, Long Ao was sent by the Guardians to invite Liu Hong to join the Guardians, but was rejected by Liu Hong, who was young and vigorous at the time.

At that time, Long Ao was also young and vigorous, and Liu Hong was the first person to throw his face at him since he grew up so much, which made Long Ao very unhappy.

So, in order to teach Liu Hong a lesson, Long Ao made an appointment to fight Liu Hong.

Liu Hong naturally would not back down, and agreed directly, and the battle between the two was directly scheduled for the same night.

Before Long Ao officially made a move, he showed a faint smile.

As a result, Long Ao lived here for seven days, and Liu Hong was beaten for seven nights.

It's been more than 20 years, and Liu Hong saw this smile again, which couldn't help but remind him of his youth, and even more reminded him of the week when he was beaten violently.

"Dragon Emperor, that, it's really a mistake, I apologize to you." Liu Hong said with a bitter face.

After hearing this, Long Ao shook his head and smiled, "Don't worry, it won't happen twenty years ago." ”

When Liu Hong heard this, he breathed a long sigh of relief, and his hanging heart suddenly relaxed.

"I came here for two purposes, one is to give my son a head, and the other is to ask you to help me take care of my son." Long Ao said.

"Dare to ask the Dragon Emperor, are you leaving?" Liu Hong asked in surprise.

Long Ao nodded, "That's right, you must have heard of what happened twenty years ago. And there are still doubts about that matter, I need to go back to the guardians and use the resources of the guardians to investigate. ”

Hearing Long Ao's words, Liu Hong suddenly fell into memory.

Twenty years ago, the Guardians issued a summoning order after another, saying that a great calamity was coming.

All the masters, including Liu Hong, went to the Guardian Headquarters for a while, but they were told that the disaster had been solved.

When Liu Hong arrived at the Guardian Headquarters, he saw that all the Guardians had some injuries on their bodies, and even sacrificed dozens of Guardians.

It was at that time that Long Ao left the Guardians.

Although Liu Hong ran away in vain at that time, he was still very happy to know that the disaster had been solved.

But now after hearing Long Ao's words, Liu Hong also realized that things back then were probably not so simple.

Because the so-called catastrophe was not made public by the guardians.

Even the masters on Earth don't know anything about that.

Liu Hong only blocked the news as a defender in order not to cause panic.

"Dragon Emperor, can I help with this?" After thinking about it, Liu Hong asked.

Long Ao shook his head, "Not now, but sooner or later it will be useful." By the way, train the academy of your academy, if anything really happens, they will definitely be forced to go to battle. ”

"Does this also include your son?" Liu Hong asked in surprise.

"That's right, including your son."

After Liu Hong heard this, he was stunned as if he had been struck by lightning.

"I know you don't want your son to go to war. But since you have chosen to send him to the Seven Saints Academy, you should be ready. I am also reluctant to go to the battlefield for Long Xuan, but for the safety of the world, he must go, because he is a man! Long Ao said expressionlessly.

Liu Hong took a deep breath and said slowly, "Excuse me, what happened twenty years ago that could threaten the safety of the world?" ”

"If I say, I don't know, do you believe it?"

"How is this possible?"

Long Ao sighed helplessly, and said with a hint of bitterness on his face, "I wasn't in the Guardian Headquarters back then, and I rushed back after learning the news. I just remember that there was a strong man, a super invincible strong man, with a mask, wearing a long run, and single-handedly taking on the entire defender. ”

Thinking of the scene back then, Long Ao's eyes also showed a trace of jealousy, and the figure like a god lingered in his mind for a full twenty years.

"How can there be such a strong man?" Liu Hong was puzzled, "Even if it is a powerhouse in the Infinite Realm, it is impossible to single out the entire guardian, after all, the guardian still has the four heavenly gods in charge, isn't it?" ”

The four heavenly gods in Liu Hong's mouth are actually four people, the four strongest people on the earth.

It is rumored that two of them had already reached the Infinite Realm twenty years ago, while the other two had already attained the Divine Realm.

"Yes, think about it, under the same realm, one person is stronger than another, what is the reason?" Long Ao asked with a smile.

"This can't be the case, isn't it, Gongfa?" Liu Hong suddenly thought.

"That's right, it's the exercises." Long Ao said lightly, "The exercises used by that person have never appeared in our world. ”

Hearing this, Liu Hong was shocked, and at the same time remembered someone.

"You mean, Tong Tianhong's theory is correct? Universe, is there really more than one? Liu Hong said in surprise.

A long time ago, there was a genius scientist on the earth, who was far beyond ordinary people in terms of wisdom and insight, and was named Tongtianhong.

His appearance has greatly promoted the development of science and technology on the earth, which has also made him a scientist praised by everyone.

But before he died, he put forward a theory that was difficult for the world to accept.

He said that the world was originally a whole, but for some reason, it was divided into nine parts, and these nine parts were limited by rules and became parallel universes.

This statement seemed ridiculous at the time and even now.

Because there is simply no evidence to prove that this theory is correct.

It is precisely this theory that ruined the reputation of Tongtianhong.

When later generations mentioned Tong Tianhong, they only thought of his absurd theories, but ignored his other contributions.

The 12 zodiac signs mentioned by Lin Quan before are a kind of existence shared by all worlds, which was also written by Tong Tianhong in a paper.

"Maybe it's because a talented person has developed a new technique on his own." Long Ao shook his head and said, "Who knows, so it needs to be investigated." ”

"Go ahead, and if you need me, just say it." Liu Hong thought for a while and said.

"Well, thank you. By the way, you must protect the Seven Saints Library, and I think you should know why. After Long Ao finished speaking, without waiting for Liu Hong to reply, his figure disappeared in place in an instant.

And Liu Hong, who was standing in place, saw Long Ao's figure disappear, turned around and looked down the mountain, and saw the Seven Saints Library in the academy at a glance.

"As the dean, how could you not know the importance of the Seven Saints Library......" Liu Hong said bitterly.

……

Early the next morning, Long Xuan woke up early and woke up his three roommates.

As for what happened last night, he naturally didn't know.

"Dragon King, what are you doing so early, let's start military training after tomorrow." Zhao Nanfeng said sleepily.

"I guess our Dragon King is too excited because he just entered the academy." Xu Feng also said with a tired face.

Not to mention Lin Quan, after he saw that Long Xuan was okay yesterday, he went directly to the library, borrowed a book, came back and read it all night, and didn't sleep until four o'clock in the morning.

And Zhao Nanfeng and Xu Feng played with their mobile phones all night and swiped the college's forum, resulting in the same lack of sleep.

Long Xuan said with a trembling face, "Although today is free time, we have to go to the Academic Affairs Office to register the identity of the Heavenly Master, have you forgotten?" ”

Every Celestial Master on the earth needs to be registered in the Celestial Master Register, so that it can be regarded as officially having the identity of a Celestial Master.

With the identity of the Heavenly Master, you can even enjoy a lot of discounts.

For Long Xuan, who was short of money, the identity of the Heavenly Master was a weapon to save money, so the sooner he registered the identity of the Heavenly Master, the better.

But in fact, for everyone in this world, it is a very important thing to be able to obtain the identity of a Heavenly Master.

After all, after registering as a Heavenly Master, his identity has changed drastically.

They enjoy better treatment than ordinary people, but they also face more dangers than ordinary people.