On the morning of this day, Lu Yu went to Yungu alone to collect medicinal herbs, and suddenly met Bai Ji, the senior brother he had met on Earth before.

Bai Ji asked him how his cultivation was, and then left, in fact, he went to Senior Sister Yu Qin to discuss how to report Lu Xi's matter to Yun Ji, the great devil of the Demon Realm.

Bai Ji and Yu Qin are both undercover agents sent to the fairy world by the demon world, both of their parents are demon lords, and they have always been well hiding their own magic cultivation in the Zen Yun Sect, which has been thousands of years ago.

And Yun Ji is Bai Ji and Yu Qin's master in the Demon Realm, and he is also their top boss.

After Lu Yu returned to the Zen Yun Sect, he couldn't help but have some doubts in his heart. He remembered the sudden appearance of his senior brother Bai Ji, and the tone in which he asked about his cultivation, which didn't seem like simple concern.

Lu Yu began to doubt the true identities of Bai Ji and Yu Qin, but he had no evidence to prove his conjecture.

A few days later, Lu Yu received a mission to go to a distant valley to collect some rare medicinal herbs. He didn't want to accept this task, but considering that it was a task given to him by the sect, he decided to go.

In the process of collecting medicinal herbs, Lu Yu suddenly felt a powerful demonic aura, and he immediately became vigilant and looked around.

At this moment, he saw Bai Ji and Yu Qin standing not far away, and the demonic aura emanating from the two of them made him shudder.

Bai Ji discovered Lu Xi's existence, but he thought that Lu Xian's cultivation was still shallow and he couldn't discover the demonic energy that was emanating from his and Yu Qin's bodies.

Bai Ji smiled and walked towards Lu Yu and said, "Senior brother, the herbs you collected are very good, but there are some dangers here, so you should go back with us." ”

Lu Yu's heart tightened, he knew that Bai Ji and Yu Qin must have some conspiracy, but he didn't know how to deal with it.

He thought about it and decided to follow them back first, and then find a way to find out their true identity and purpose.

After returning to the Zen Yun Sect, Lu Yu began to secretly investigate the identities of Bai Ji and Yu Qin.

After following them a few times, Lu Yu found that although the two were ostensibly disciples of the sect, they were actually undercover agents sent by the Demon Realm, and they had been lurking in the cultivation of Demon Skills, and from their conversation, they learned that their parents were both Demon Lords, and they were inextricably linked with Yun Ji, the great demon of the Demon Realm.

Moreover, their purpose in lurking in the fairy world is to let the demon world always grasp the news of the fairy world, and in time to subvert the fairy court and occupy the fairy world.

Lu Yu finally understood the true identity behind Bai Ji and Yu Qin, and he decided to expose their conspiracy and let the elders of the Immortal Court know the truth, especially his father Luo Qi.

So he began to secretly collect evidence and prepare to report the matter to the elders of the Immortal Court. However, he didn't know that his actions had been detected by Bai Ji and Yu Qin, and a crisis was quietly approaching.

Bai Ji has now used the teleportation of the Demon Realm to inform Yun Ji that Lu Yu is the biological son brought back by Luo Qi from the mortal realm, and he and Yu Qin have been tracked, I am afraid that his identity will be exposed.

Yun Ji's first reaction was that he must kill Lu Yu as soon as possible, and he must not let Luo Qi have a successor.

In this way, the first assassination plan of the big devil of Yunji against Lu Yu officially kicked off.

During Lu Xian's days in the Zen Yun Sect, he lived a calm and stable life on the surface, but in fact, his heart was full of tension and uneasiness. He knew that the contest between himself and Bai Ji and Yu Qin had just begun. He had to be careful not to make them aware of his intentions, or the consequences would be dire.

In order to cope with the impending crisis, Lu Yu began to double down on his cultivation of his immortal method and improve his strength. He understands that only great strength is the best weapon to protect himself and expose the enemy's conspiracy. At the same time, he also began to pay more attention to Bai Ji and Yu Qin's every move, looking for their flaws and weaknesses.

However, just when Lu Yu was nervously preparing for the war, a big event suddenly happened in Zen Yun Buddhism. A messenger from the Immortal Court suddenly descended to the Zen Yun Sect and announced that a great battle of immortals and demons would be held to decide the fate of the immortal realm and the demon realm. This battle will be held soon, and the Zen Yun sect will also participate in it as an important force in the fairy world.

This news is undoubtedly a huge challenge for Lu Xi. He knew that he had to do something in this big battle in order to better expose the conspiracy of Bai Ji and Yu Qin. At the same time, he also understands that this fight will also be his best chance to prove his strength and worth.

As a result, Lu Yu began to cultivate and prepare harder. Not only does he have to improve his strength, but he also has to secretly collect evidence to reveal the true identities of Bai Ji and Yu Qin. He knew that this battle would be the most important test of his life, and he would have to give it his all to achieve victory.

Just when Lu Yu was nervously preparing for the war, Bai Ji and Yu Qin were also secretly planning their conspiracy. They knew that Lu Yu had begun to suspect their identity, and they also knew that Lu Yu was secretly collecting evidence. In order to stop Lu Mi's actions, they decided to assassinate him during the Immortal Demon War.

However, their plan was detected by Lu Yu in advance. On the eve of the Great War of Immortals and Demons, Lu Yu suddenly disappeared. Bai Ji and Yu Qin searched everywhere for him, but found nothing. Unbeknownst to them, Lu Yu had secretly infiltrated the camp of the Demon Realm, preparing to expose their conspiracy in one fell swoop.

At this time, the battle between the immortals and demons was about to start, and the demon world had already arranged their camp and set it up near the immortal gate. Lu Yu learned of this information and decided to infiltrate the Demon Realm camp alone.

In the camp of the Demon Realm, Lu Yu saw the Great Demon of Yunji, Bai Ji, and Yu Qin plotting something in a suspended tabernacle. He knew that this was his best chance to expose the enemy's conspiracy. So, he rushed forward without hesitation and started a fierce battle with Yun Ji.

Although Lu Xi's strength is very different from Yun Ji's, he is not afraid. He did his best and started a thrilling battle with Yun Ji.

In the end, with Lu Xi's persistence and efforts, he finally succeeded in defeating Yun Ji with the Lan Trace Sword and the Heavenly Meteorite Escape Technique, and revealed the true identities of Bai Ji and Yu Qin to the Immortal Court.

The battle between the immortals and demons was thus cut in half. Before the war began, the fairy world was pleasantly surprised to get the good news that the demon world general Yun Ji was seriously injured by Lu Yu.

Since Yun Ji was temporarily unable to participate in the war, this time the battle between immortals and demons was also canceled.

This battle with Yun Ji was undoubtedly a huge victory for Lu Ji. He not only succeeded in exposing the enemy's machination, but also proved his strength and courage. He knew that he had become a true hero of the fairy world, and he had also won glory for his father Luo Qi.

However, the victory didn't make Lu Mei let his guard down. He knew that although Bai Ji and Yu Qin had been exposed, the demon forces behind them were still strong. In order to protect the peace and tranquility of the Immortal Realm, he must continue to cultivate and fight hard until the threat of the Demon Realm is completely eliminated.

Since Yun Ji was injured by Lu Yu and returned to the Demon Realm, he felt disgraced. So, he began to intensively plan to assassinate Lu Yu for the second time.

Bai Ji and Yu Qin were exposed by Lu Yu in the Immortal Court because of their identities, and they were no longer able to stay in the Immortal Realm, so they were expelled from the division by Luo Qi and completely removed from the Immortal Realm by the Immortal Court.

Lu Xi secretly swore that he must sweep away the forces of the demon world, not only for his own safety, but also for the peace and tranquility of the entire fairy world.

After Lu Yu experienced a heavy blow to Yun Ji, he was not idle, and thus developed a good idea of creating the Immortal Realm Anti-Investigation Alliance.

The purpose of this alliance is to unite all the immortal people who have been persecuted by the Demon Realm to fight against the invasion of the Demon Realm.

Lu Yu invited many immortal elites who had survived the previous immortal and demon wars, as well as those immortals who were persecuted by the demon realm and were homeless, to join this alliance.

Under the leadership of Lu Yu, the Anti-Investigation Alliance grew rapidly and became a powerful resistance force in the fairy world.

Lu Yu knew that in order to completely eliminate the threat of the Demon Realm, it was far from enough to rely on personal strength. He must unite all the forces that can be united to fight the aggression of the Demon Realm.

So, he began to run around, lobbying more people from the fairy world to join the anti-investigation alliance. With his efforts, there are more and more members of the Anti-Investigation Alliance, and the resistance of the fairy world is becoming stronger and stronger.

However, the big devil Yun Ji did not give up his assassination plan against Lu Xi. He sent batch after batch of Demon Realm assassins to try to assassinate Lu Xi.

But Lu Yu relied on his superb martial arts and extraordinary wisdom to successfully resolve assassinations again and again. Every assassination made Lu Mian more determined to destroy the forces of the Demon Realm.

He knew that only by completely destroying the forces of the Demon Realm could he ensure the peace and tranquility of the Immortal Realm. So, he continued to lead the members of the Anti-Detection Alliance through hard training and preparation, waiting for the next battle with the demons.

To Lu Yu's great surprise, his senior brother Qiu Lin in the Zen Yun Sect also joined the anti-investigation alliance recently. Qiu Lin is already a strong force at the level of Zhongxian, which undoubtedly strengthens the anti-investigation alliance.

Qiu Lin tested all the more than 300 members of the Anti-Investigation Alliance, and established their grades based on their comprehensive quality, which were divided into junior, intermediate, and senior team members. Qiu Lin served as an instructor of the Anti-Investigation Alliance, responsible for the guidance of daily training and test rating.

Lu Yu looked at Qiu Lin in front of him, and his heart was full of gratitude and respect. He knew that with Qiu Lin's joining, the strength of the Anti-Investigation Alliance would be even stronger. He also believed that under Qiu Lin's guidance, the members of the Anti-Investigation Alliance would work harder to cultivate and fight, and contribute their strength to the peace and tranquility of the immortal world.

As the strength of the Anti-Detection Alliance continues to grow, the assassins of the Demon Realm have begun to become more and more cunning and vicious. They began to use more covert and vicious methods to try to assassinate Lu Xi. But Lu Yu was not afraid, and with his extraordinary wisdom and courage, he successfully defused one assassination after another.

By chance, Lu Yu learned an important piece of information from the Demon Realm: they were secretly developing a super weapon capable of destroying the entire Immortal Realm. Lu Yu knew that this news was very important for the future of the immortal world. He had to pass this information on to the Immortal Court as soon as possible, so that the Immortal Realm could be prepared.

So, Lu Yu began an adventurous journey. He led the members of the Anti-Detection Alliance through many dangers and obstacles, and went deep into the core area of the Demon Realm, trying to obtain more information. In the process, they not only encountered countless dangers and challenges, but also met many like-minded people from the fairy world. Together, they fought side by side to resist the invasion of the Demon Realm.

In the end, Lu Yu successfully obtained the superweapon information of the Demon Realm and passed it on to the Immortal Court. The Immortal Court immediately took emergency measures to strengthen the defense of the Immortal Realm. With the efforts of Lu Yu and the Anti-Investigation Alliance, there is finally a glimmer of hope for the future of the fairy world.

However, the threat of the Demon Realm has not been completely eliminated. Lu Yu knew that if he wanted to completely eliminate the forces of the Demon Realm, he would need to work harder and have a firm faith. He will continue to lead the members of the Anti-Reconnaissance Alliance in more training and battles until the day of final victory.

During this time, Luo Qi saw his son Lu Xi's astute ability to do things, and he was deeply grateful. At the same time, for the fact that there are two disciples under the door who are actually undercover agents of the demon clan, even if Luo Qi doesn't say it, others can see his pain.

Seeing Lu Yu grow up day by day, Luo Qi took this opportunity to enter one of his immortal caves for retreat and cultivation. In this retreat, Luo Qi wanted to reflect on why he hadn't discovered the undercover agents in the Demon Realm, and urgently needed to improve his strength to cope with the many challenges ahead.