Mentioning the past events by his nephew seemed to displease Huian. "There is absolutely nothing wrong with the medicine I concocted. Otherwise, why would there be no issues after you all consumed it? It's... it's just that their constitution is too weak and they can't endure it."

But when he thought back on what he had said in the past, he became increasingly uncertain.

Three years ago, since the Fairy Spirit Conference started, Huian hasn't taken in any more disciples. It's not that he doesn't want to, but his senior martial brother, the head disciple, wouldn't allow it. He had previously taken in five or six disciples intermittently, but none stayed by his side for long. Some lasted only three to five years, while others left after just three to five months. Not only did they refuse to become his disciples, but they also didn't dare to stay in the Xuan Yin Sect any longer.

Because Huì àn is a doctor, she often has to make multiple attempts when refining new medicines. From the formulation of the prescription to the refining of the pills, it requires a long period of research. Especially, the precise measurement of each medicinal ingredient is crucial. Even the tiniest excess, no matter how small, could potentially cost someone their life.

Whenever a new medicine was refined, Hui'an would personally test it on herself. After confirming that it was safe, she would then have her disciples try it, only to find that they all fell victim to its side effects.

Huian sometimes doubted whether it was the heavens playing tricks on him or if it was just bad luck for his disciples that whenever something went wrong, it happened to them.

Every disciple who passes through the Ghost Gate and is saved by him makes a decision to bid farewell to their master and go back home, of course, he does not force them to stay either.

His last disciple left four years ago, and he was also the disciple who had been with him for the longest time. Of course, he was also the one who had tested the most medicines for him and suffered the most severe poisoning. Four years ago, after taking his medicine, this disciple almost met his end. Fortunately, the senior brother of the sect leader arrived in time to save him with his true qi, allowing him to survive until he found a way to treat him.

Afterwards, his disciple, who had been with him for five years, also departed. However, what he knew was that this disciple, whose fate with him had already ended, had learned a decent medical skill during those years of following him. After coming down the mountain, the disciple finally had a valuable skill to make a living, which relieved him of much guilt in his heart.

However, the idea of accepting a disciple with good talent and physique has never been dismissed by him in recent years. He has devoted himself to the study of medical skills for decades, and does not hope that his own skills would have no one to continue after him.

"Never mind, never mind. Perhaps I have underestimated the lives of my apprentices in the past, treating them as mere child's play. I neglected to consider their physical constitution, which is incomparable to mine as someone who frequently experiments with medicine. From now on, I will be more careful." Certain matters can only be revealed through careful reflection, leading to the discovery of one's mistakes. "For the sake of your apprentice, I can pretend to be unaware of your junior apprentice's predicament. However, you must not regret your actions today. When the time comes for you to attempt to lift the seal on his body again, it will not be a debt that a mere apprentice can repay."

"Thank you, Master Uncle," Yun Ling replied without seeming to concern herself with what might happen in the future. She stood up from her seat and continued, "Besides that, there is something else I would like to ask Master Uncle for."

Huì àn wrinkled her brows. "Master's nephew, don't think that just because you agreed to help me find a disciple, you can take advantage of me. Besides medicine, there's nothing else in my medicine hut for you to take."

Yun Lin filled a cup of medicinal tea from the teapot and placed it in front of Master Shixu Huian. "Don't worry, Master Shixu. Even if you were to give me the things here, I might not have any use for them. What I really want is the Concentrated Spirit Incense that you have someone send to me every month."

"Concentrated Mind Incense?" Huian looked at Yunlin with surprise. "I remember that not long ago, someone delivered a month's worth to you. It hasn't even been a month, and you've already finished it? Yunlin, I've told you before that using incense every five days can help you concentrate your mind and regulate your internal energy, but medication is three parts poison. If you use it too frequently, problems will arise. At best, it will make you fall into a deep sleep; at worst, it will cause mental bewilderment and hallucinations."

This "Concentrated Mind Incense" is a result of Master Huian's many years of research. It is made by blending sandalwood with various calming herbal ingredients. Within the entire Xuan Yin Sect, he only gifted it to the Sect Leader's Senior Brother and this esteemed Master Nephew.

"Shishu, rest assured, I know how to handle it," Yun Lin lifted his eyebrows slightly, "Do you really think I would use the Concentration Incense to harm others or myself?"

Hui'an understood Yun Lin's character well. It was certain that he would not harm others, but as for harming himself, it was hard to say.

"Alright, I'll go get it for you. But if anything goes wrong, don't put the blame on me." After saying this, Huian turned around and went back into the house. He reached into the cabinet and grabbed a handful of the Concentration Incense that he had prepared, wrapping it in paper.