"You're finally back, and I don't know how many shadow killers you've killed. The body fused with the night, and Nalan Xuan, who did not leak a trace of breath, saw Yun Tianyu teleporting to appear, and a faint smile appeared on his face, and asked softly.

"Twenty-nine!" Yun Tianyu's mind moved, and he took out the twenty-nine hideous, but not bloodless shadow killer heads from the Razor ring, and looked at Nalan Xuan shrouded in the dark night with some nervousness.

The reason why Yun Tianyu was nervous was only because he was very eager to defeat Nalan Xuan and get a promise from Nalan Xuan, and use this promise to make Nalan Xuan wait for him for ten years.

However, when Yun Tianyu deliberately alarmed a large number of shadow killers, causing chaos and waiting for an opportunity to assassinate, he found that he had made a huge mistake, that is, Nalan Xuan's strength was far superior to his own, and in a chaotic situation, it was easier to kill the shadow killers.

"Twenty-nine shadow killers!" Nalan Xuan, whose eyes burst out with the power of rules, saw the twenty-nine human heads that Yun Tianyu took out, and fell into deep thought.

"Xuan'er, I don't know how many shadow killers you've killed. "When no one is around, Yun Tianyu prefers to call Nalan Xuan 'Xuan'er', and asked a little nervously.

"I killed twenty-eight shadow killers! Yun Tianyu, you won. Touching Yun Tianyu's expectant eyes, Nalan Xuan instantly understood the deep meaning in his eyes, and only took out twenty-eight Shadow Killer heads, leaving the remaining one-third of the Shadow Killer Leader in the Qiankun Ring.

"Twenty-eight Shadow Killer heads! So I won. Seeing that the number of shadow killers killed by Nalan Xuan was only one less than his own, Yun Tianyu glanced at Nalan Xuan, who had no change in expression, and said with a faint smile.

"Yes, you won! You want me to promise you. Nalan Xuan, who had already sensed it in his heart, but didn't say it, asked lightly.

"My promise is very simple, you wait for me for ten years, and within ten years, I will definitely reach the strength recognized by your family, and personally come to your family to propose marriage. Although Yun Tianyu has met many stunning beauties, but during the time he got along with Nalan Xuan day and night, that love was deeply imprinted in Yun Tianyu's heart, making him unforgettable, in his heart, he had already regarded Nalan Xuan as his wife, so he used this promise to let Nalan Xuan wait for him for ten years.

Although ten years was a very short time, Yun Tianyu believed that with the help of the Great Demon King, he would have the opportunity to achieve the strength of making the Nalan Xuan family face up to himself in ten years.

Fight for love and have no regrets in your life.

"Okay, I promise to wait for you for ten years, and no matter what pressure I am forced to do in these ten years, I will not get married. Hearing that Yun Tianyu let him fulfill his promise as he imagined, Nalan Xuan secretly breathed a sigh of relief, and finally made up his mind to nod and agree.

"Xuan'er, since you agreed, can you tell me your identity and background, so that I can find you in the future. Nalan Xuan agreed, and Yun Tianyu immediately smiled excitedly and asked expectantly.

"Okay, since I promised to wait for you for ten years, then I'll tell you. I am a person from the Central Continent, that is, the Heavenly Domain in your mouth, and my family, the Nalan Family, has a high status in the Heavenly Domain, and has a close relationship with the Great Qian Dynasty. Nalan Xuan took a deep breath and told Yun Tianyu in detail about his identity and background.

"Tianyu Nalan Family!Xuan'er, I don't know what kind of realm master your family's strongest person is?" Knowing Nalan Xuan's identity and background, Yun Tianyu pondered for a moment and continued to ask.

"The strongest in our family is my father, he is a fourth-level true immortal master, you can only be accepted by my family if you reach the fourth-level true immortal realm within ten years. However, ......" Thinking of the forces behind his family, Nalan Xuan wanted to speak and stopped, but in order not to discourage Yun Tianyu's enthusiasm, Nalan Xuan sighed softly and did not continue.

Seeing that Nalan Xuan wanted to speak and stopped, Yun Tianyu misunderstood that Nalan Xuan didn't believe that he had reached the fourth-level true immortal realm within ten years, and he didn't think about it further.

"Xuan'er, you are from the Heavenly Domain, your father is a fourth-level true immortal master, you should also be a true immortal master. Yun Tianyu glanced at Nalan Xuan with deep meaning, and asked a little abruptly.

"Yes, I am a true immortal master, and I came here to hide my strength! Tianyu, can you help me keep this secret. Hearing Yun Tianyu's inquiry, Nalan Xuan looked stunned, glanced at Yun Tianyu, and nodded in acknowledgement.

"Don't worry, Xuan'er, I'll keep it a secret for you. ”

"Because I owe you a promise. Knowing Nalan Xuan's true strength, Yun Tianyu suddenly guessed that the number of shadow killers killed by Nalan Xuan definitely exceeded that of himself, and he deliberately lost to himself, he was very moved in his heart, and said softly.

"Tianyu, there are still a lot of shadow killers hidden in this black mountain forest, are you going to return, or continue to kill. Nalan Xuan suggested softly.

"I have a feeling that the exit from this black space is in this black mountain, so why don't we try to find it and go back. Yun Tianyu suggested softly.

"Okay, let's go. Promised Yun Tianyu a promise, and told him his identity and background, the relationship between Nalan Xuan and Yun Tianyu has been pulled into a lot, and Nalan Xuan is no longer cold when he speaks.

"Tianyu, I'm really surprised that with your second-level Dao Immortal realm strength, you have mastered the power of rules that only a true immortal master can grasp. Feeling the power of the rules that continued to burst out in Yun Tianyu's eyes, Nalan Xuan, who was constantly going deep into the black mountains, asked curiously.

"If there is no extraordinary, how can I have the confidence to enter the Heavenly Domain in ten years and marry you with dignity. Yun Tianyu showed a faint smile and said deliberately.

"Ten years!" Although Yun Tianyu did have a lot of things that impressed Nalan Xuan, Nalan Xuan, who had seen too many geniuses, was not optimistic about Yun Tianyu, and he had broken through from a second-level Dao Immortal to a fourth-level True Immortal in ten years, which had never appeared in the history of the Heavenly Domain.

"Ten shadow killers, let's go together!" As Yun Tianyu and Nalan Xuan continued to go deeper, they found ten shadow killers halfway up the mountain, and immediately quietly approached them.

Approaching the ten shadow killers, Yun Tianyu and Nalan Xuan glanced at each other, and both attacked the ten shadow killers.

"Instant Killing Sword!" Just when Nalan Xuan relied on his speed to preempt Yun Tianyu's senses, Yun Tianyu's body disappeared instantly, and a sword was stabbed out in the teleportation trajectory, and a demonic purple sword light directly pierced through the bodies of the four shadow killers who were unable to react, splitting their bodies that were not very strong in defense.

"Hum!" Yun Tianyu used the Instant Killing Sword to kill the four Shadow Killers in an instant, and Nalan Xuan immediately stretched out the Heavenless Umbrella, reflecting a terrifying white pillar of light, hitting the bodies of the remaining six Shadow Killers, directly shattering the six of them.

After killing ten shadow killers, Yun Tianyu and Nalan Xuan didn't stop at all, their bodies flashed slightly, and they disappeared into the black mountain forest.

"Xuan'er, can you help me subdue a shadow killer, and I'll find a way to get his brain memory. "Although Yun Tianyu can easily kill the Shadow Killer with the help of immortal weapons, it is very difficult to subdue the strength of calm, and he has to turn to Nalan Xuan for help.

"There is a ban in the brain of this shadow killer, and if we release the soul power to penetrate, it will immediately detonate the ban in his brain. Nalan Xuan, who had tried to infiltrate the brain of the Shadow Killer, but fell short, reminded.

"I just tried it, and I wasn't completely sure. "With the improvement of Yun Tianyu's strength, Yun Tianyu's early splitting can control the second-level Dao Immortal's Soul Eclipse Subbrain is almost useless, Yun Tianyu is ready to spend a Soul Eclipse Subbrain to try to erode the memory of the Shadow Killer's brain and obtain the secret of the Black Mountain Forest.

"Well, when we meet the lone shadow killer, I'll help you subdue it. Nalan Xuan nodded lightly and continued to go deeper with Yun Tianyu.

For about five hours, after Yun Tianyu and Nalan Xuan killed more than a dozen shadow killers, they were about to discover a lone shadow killer.

Under Nalan Xuan's surprise attack, the shadow killer was immediately hit hard and was subdued by Nalan Xuan.

Nalan Xuan subdued the Shadow Killer, and Yun Tianyu didn't cover it up too much, and quickly took out the Soul Eater Brain, which could control the consciousness of the second-level Dao Immortal's brain, and eroded towards the Shadow Killer's brain.

Corrupted by the rapidly wriggling Soul Eater Brain, the Shadow Killer's Brain Forbidden was eroded by the Soul Eater Brain before it could self-detonate, and lost its ability to self-detonate.

After about a stick of incense, the Shadow Slayer's brain consciousness was controlled by the Soul Eater Brain, and Yun Tianyu learned a lot of valuable information through the Soul Eater Brain.

"How about Tianyu, have you learned valuable information?" Nalan Xuan, whose eyes burst out with the light of Dao rules, found that Yun Tianyu slowly opened his eyes and asked softly.

"I already know where we left the exit. Yun Tianyu nodded lightly and said without concealment.

"Tianyu, I found that I really underestimated you. Although Nalan Xuan was very curious about the Soul Eclipse Subbrain that controlled the Shadow Killer's brain, Yun Tianyu didn't say it explicitly, and as a smart person, Nalan Xuan didn't ask much.

"It's still the same sentence, how dare you pursue you without some means. The corners of Yun Tianyu's mouth turned up slightly, and her eyes looked at Nalan Xuan, who was close at hand and completely moved her heart, and said softly.

Touching the heat in Yun Tianyu's eyes, Nalan Xuan immediately avoided his gaze and said softly, "Since we already know where the exit is, let's go back and join them!"

"Okay!" Yun Tianyu nodded, and Nalan Xuan, who controlled the shadow killer, flew out of the black mountains with him, and joined the Golden Jiao Dragon King and the others.

Converging with everyone, Yun Tianyu told everyone about the situation of the Black Mountains, and then ordered the Shadow Killer to fly into the Black Mountains with his group and fly towards the exit of the space.

Under the reminder of Yun Tianyu and Nalan Xuan, after killing dozens of shadow killers, the Golden Jiao Dragon King and the others flew into a narrow valley and found a way to leave at the end of the valley.

However, just as Yun Tianyu and the others broke through the prohibition on the exit of the passage and flew into the passage containing the power of teleportation, the body of the shadow killer controlled by the soul eater brain suddenly collapsed and disappeared into the teleportation channel.