Mortal: I became invincible after becoming sworn brothers with Han Li.

As evening approached, Qi Yunxiao returned to the teahouse, looking somewhat tired. Given his current Qi Refining stage cultivation, it was quite an achievement for him to return from the market to the teahouse at this time.

Looking at Qi Yunxiao's exhausted face, Li Yunfan knew that the other party must have rushed back desperately, otherwise he wouldn't look like this.

"This junior's cultivation is low, and it took me so long to return. I apologize for keeping you waiting, senior!" Qi Yunxiao said with a wry smile, cupping his hands in greeting.

"It's alright. We cultivators can meditate for months at a time. I can wait this long." Li Yunfan chuckled, showing no sign of dissatisfaction.

After speaking, he glanced behind Qi Yunxiao and, not seeing Xin Ruyin, asked, "Why isn't Fellow Daoist Xin with you?"

"Thank you for your generosity, senior! Miss Ruyin is waiting for your arrival outside!" Qi Yunxiao breathed a sigh of relief and then cupped his hands in greeting.

When Li Yunfan arrived at the teahouse entrance, he indeed saw Xin Ruyin and Xiao Mei standing to the side waiting.

"senior……"

When Xin Ruyin saw Li Yunfan, she was about to say something when he raised his hand to interrupt her.

"Fellow Daoist Xin, this place is too noisy for us to have a proper conversation. Let's find a quiet place to talk!" Li Yunfan said softly with a faint smile on his lips.

"Senior is right, it was Ruyin who did not consider this carefully!" Xin Ruyin nodded slightly and said apologetically, then looked at Qi Yunxiao and asked a question.

"Brother Qi, could I and my senior come to your place to exchange some insights on formations?"

Upon hearing this, Qi Yunxiao's face lit up with surprise, and he quickly nodded in agreement.

Li Yunfan had no objection to this, so the three of them, led by Qi Yunxiao, went to his residence near Jinma City.

Li Yunfan wasn't very knowledgeable about formations, but he had carefully studied the formation insights he had received from Elder Zhou in order to break the altar formation.

Although he is far from reaching the level of a formation master, his photographic memory is enough to allow him to have a conversation with Xin Ruyin.

Xin Ruyin, as expected of a genius in the art of formations, also had her own unique understanding of formations. After their exchange, Li Yunfan suddenly understood the things that had puzzled him before.

"Fellow Daoist Xin is indeed extremely talented in the art of formations. This exchange has been very beneficial to me!" Li Yunfan said to Xin Ruyin with a smile.

"Senior is too kind. Your knowledge of formations is also extraordinary. I have learned a lot from you!" Xin Ruyin replied with a smile.

As for Qi Yunxiao, he frowned the whole time, his face sometimes showing a thoughtful expression and sometimes a look of sudden realization. Although he was a weapon refiner, he also benefited greatly from listening to the exchange between Li Yunfan and the other person.

"I never expected Xin Ruyin to be so knowledgeable about formations. This is far beyond my expectations. Perhaps she really can break that formation..." Li Yunfan thought to himself.

His purpose in contacting Qi and Xin this time was not only to befriend them, but also because he recognized Xin Ruyin's talent in formations and planned to have her try to break the altar formation.

He had tried to repair it before, but whether it was because his knowledge of formations was too poor or because the formation could not be repaired after it was destroyed, no matter how he tried, he could not get it working again.

So when he saw Xin Ruyin, he had the idea of ​​using her to repair the formation.

"Fellow Daoist Xin, have you ever heard of such a formation? It can not only completely isolate the spiritual energy within the formation and maintain it for hundreds or thousands of years without dissipating, but it can also block divine sense from probing, just like there is nothing there..." Li Yunfan pretended to ponder for a moment before looking up and asking.

"Isolate spiritual energy and block divine sense from probing?" Xin Ruyin frowned slightly and actually lowered her head to think.

Upon seeing this, a glint of inspiration flashed in Li Yunfan's eyes. Judging from the other party's appearance, he might actually know something.

After a long while, Xin Ruyin looked up with a wry smile and shook her head at Li Yunfan.

"This humble woman is of limited knowledge and has never seen such a formation before. I have heard of formations that isolate spiritual energy or block divine sense, but a formation that combines both is unheard of!"

Upon hearing this, Li Yunfan's eyes dimmed, and he sighed inwardly.

"Could it be that you have seen such a miraculous formation before, senior?" Xin Ruyin noticed the change in Li Yunfan's expression and a hint of surprise flashed in her eyes.

"To be honest, Fellow Daoist Xin, I have indeed seen such a formation, but it has been destroyed and cannot be repaired or used at all..." Li Yunfan sighed after speaking, revealing a regretful expression.

When Xin Ruyin saw that the other party had actually seen this kind of formation, a look of excitement appeared on her face, and she also developed a strong desire to study this formation.

"Where is the formation you mentioned, senior?"

"I stumbled upon this formation in a secret realm by chance, but that realm has been closed and cannot be entered for several decades," Li Yunfan said, shaking his head as he saw that the other party had indeed taken the bait.

He paused slightly after speaking, and then continued.

"However, I have already recorded that formation..." He said, taking out a jade slip from his storage bag, placing it on the table, and pushing it directly in front of Xin Ruyin.

When Xin Ruyin heard that the secret realm had been closed and could no longer be entered, her expression darkened, thinking that she would never have the chance to see such a mysterious formation in this lifetime.

But soon she heard Li Yunfan say that he had recorded the formation, and a look of surprise appeared on her face. But before she could ask to see it, Li Yunfan had already pushed the jade slip in front of her.

"Senior, this is..." Xin Ruyin asked in disbelief.

"The jade slip contains the array formations and patterns that I recorded. Since Fellow Daoist Xin wishes to see them in person, then I will gladly give them to you!" Li Yunfan said with a smile.

Xin Ruyin looked at the jade slip in front of her, her eyes flickering slightly. Then she looked up at Li Yunfan and said solemnly, "Since Senior is willing to give you such a precious item, what are your requirements?"

"Fellow Daoist Xin is indeed intelligent. I only hope that after you break the formation, you can share the results with me!" Li Yunfan said with a slight smile, looking at the other party with admiration.

Upon hearing that Li Yunfan was only sharing the results, Xin Ruyin couldn't help but breathe a sigh of relief.

"Of course. Even if you hadn't said anything, I would have made a copy of the results and given it to you, since the formation was originally a gift from you," Xin Ruyin said with a beautiful smile.

"Alright! In that case, after you break the formation, I will send the jade slip to your teahouse. I will go and collect it when I have time."

As Li Yunfan spoke, he glanced at Qi Yunxiao and gave him a meaningful smile.

Upon hearing this, Qi Yunxiao looked at Li Yunfan with great gratitude. He naturally understood that the other party was creating an opportunity for the two of them to get to know each other, and he was extremely grateful to Li Yunfan.

Xin Ruyin could naturally understand this, and a shy look appeared on her face, but she quickly concealed it.

After bidding farewell to the two, Li Yunfan left Jinma City and spent several days before finally returning to his cave in the Taiyue Mountains.

However, as soon as he activated the concealment formation, his divine sense immediately detected the anomaly. He frowned slightly, raised his hand and gestured towards the distance, and a red flame flew out from the depths of the mist.

It turned out to be a fireball formed from a sound transmission talisman. Because Li Yunfan was not inside the cave, he was kept outside by the array's mist.

He pointed at the fireball, and it exploded instantly. At the same time, a very familiar voice rang in his ear...