Qi Songlin's face was ashen, while Qi Lianshan and Qi Yuntian appeared as if facing a great enemy.
The father and son duo, Qi Lianshan and Qi Yuntian, were so tense because they believed Du Fei was an assassin sent by another martial arts family to kill Qi Songlin.
Although few people in the Qi family knew about Qi Songlin's serious illness, secrets don't last forever. If this went on for too long, some people would inevitably feel something was amiss.
Just a few days prior, members of the Situ family had expressed a desire to visit Qi Songlin, but Qi Lianshan had politely declined with an excuse.
One instance often leads to another. Qi Lianshan knew very well that the Situ family was testing the waters.
Since the Situ family had their suspicions, it was hard to guarantee that people from other families didn't have similar thoughts.
Therefore, it was highly likely that Du Fei was a secret assassin from another family.
However, Du Fei was unaware of the inner thoughts of the three Qi family members.
He simply found it puzzling. He had only intended to cure Old Master Qi's illness and, in return, obtain the medicinal herbs from Qi Lianshan.
Why was he now being stared at like a prisoner by the three Qi family members? What was going on?
"Speak, which family sent you? If you don't explain yourself clearly today, you'll never leave this doorway!"
Qi Lianshan's tone was filled with anger.
He had been too careless, bringing the person into his own home.
Fortunately, his father had discovered it in time; otherwise, a grave mistake would have been made.
"Boss Qi, your question is quite amusing. I was introduced by Old Mr. Wang Qiyang to buy medicinal herbs from you. You yourself proposed that if I could cure your father's illness, you would hand over the herbs I need. Now you treat me like a prisoner. How do you expect me to answer?"
Though feeling a bit speechless, Du Fei knew that some things needed to be clarified, or the misunderstanding would continue to escalate.
"Lianshan, is he telling the truth?"
Qi Songlin looked at Du Fei, who didn't seem like he was lying, and turned to ask Qi Lianshan.
Since he already knew Du Fei was a martial artist, he would naturally be wary of him and not fear any tricks.
When Qi Songlin asked this, Qi Lianshan could only nod. "That was indeed the case before, but my old friend, whom I consider like a younger brother, never mentioned that this fellow was a martial artist, so..."
"Boss Qi, Old Master Qi, please think carefully. If I were truly an assassin intending to harm Old Master Qi, would I have revealed my identity so easily? Besides, regarding my identity, couldn't you simply call Old Mr. Wang and clarify everything?" Du Fei said.
Qi Lianshan paused, realizing that Du Fei made perfect sense.
He glanced at his father, Qi Songlin, and then at his son, Qi Yuntian, before taking out his phone and making a call.
The call lasted for about ten minutes.
When the call ended, a hint of embarrassment appeared on Qi Lianshan's face.
"Ah, Du Fei, I apologize. There was a misunderstanding."
After repeated communication and confirmation with Wang Qiyang, Qi Lianshan finally realized he had wrongly accused Du Fei.
However, Qi Lianshan was straightforward. A mistake was a mistake, and he didn't try to hide it, offering a direct apology.
After hearing Qi Lianshan's apology, Qi Songlin and Qi Yuntian also relaxed.
"Du Fei, is it? Although you are a martial artist and your medical skills are exceptional, I must be honest with you, my illness is caused by..."
Even though he knew Du Fei was not an enemy agent, Qi Songlin still wanted to tell him that Du Fei couldn't cure his illness.
However, Du Fei directly interrupted Qi Songlin. "Old Master Qi, your illness is actually due to an internal injury sustained many years ago. The person who injured you must have had profound true qi, and the martial art they cultivated was of a strongly aggressive and yang nature. Am I correct?"
"You! How do you know?"
Qi Songlin stared at Du Fei in shock.
He had never dreamed that this young man in front of him could pinpoint the root of his illness so accurately.
It was known only to a select few how he had been injured back then; even his son Qi Lianshan and grandson Qi Yuntian were unaware.
Yet, Du Fei had stated it plainly. How had this fellow seen through it?
"Old Master Qi, I already told Boss Qi earlier. My purpose for coming this time is to help you recover from your illness and, in exchange, obtain several medicinal herbs from him."
After Du Fei finished speaking, Qi Lianshan recounted their prior agreement.
"Good, good, good!" Qi Songlin exclaimed thrice. Then, with a look of excitement, he asked, "Young brother Du, can you cure my illness?"
He had already reached a point of despair, even handing over the position of family head to his son. Even if his son was incompetent, there was nothing he could do as he was on the verge of death.
But now, Du Fei had accurately identified the root of his illness. Qi Songlin began to believe that Du Fei could indeed cure him.
"While I cannot guarantee a hundred percent, I believe I can. However, I need to give Old Master another thorough examination."
Du Fei did not make a bold claim of absolute certainty.
But it was precisely these words that made Qi Songlin regard him with even greater respect.
So, the two sat down again.
Du Fei once again extended his fingers and placed them on Qi Songlin's wrist.
Following this, he channeled the true qi from his *Wanxiang Jue* and slowly guided it into Qi Songlin's body.
With Du Fei's prior notification this time, Qi Songlin did not offer any resistance. Instead, he suppressed his own true qi.
Du Fei controlled the *Wanxiang Jue* true qi, letting it roam throughout Qi Songlin's body.
As his true qi reached the vicinity of his chest, he suddenly felt as if his true qi were being roasted by intense flames.
Subsequently, Du Fei guided his true qi to wander through four other areas within Qi Songlin's body.
Seeing Du Fei withdraw his fingers from his wrist, Qi Songlin eagerly pressed.
At this moment, Qi Songlin appeared utterly like an impatient youth.
"Although Old Master Qi's illness is a bit troublesome, as long as we can find a medicinal herb of extreme yin and cold nature, it's not incurable."
Du Fei pondered for a moment before giving his answer.
The root of Qi Songlin's illness was primarily due to being injured by strongly aggressive and yang true qi many years ago. Furthermore, that intensely aggressive and yang true qi had remained within his body, continuously damaging his bodily functions.
It was, in itself, a miracle that Qi Songlin had survived until now.
Given the passage of many years, completely curing Qi Songlin would require a significant effort.
However, just as Du Fei had said, as long as a medicinal herb of extreme yin and cold nature could be found, Du Fei was confident in his ability to cure Qi Songlin.
Upon hearing Du Fei's words, Qi Lianshan immediately began to contemplate all the medicinal herbs within the family's collection.
For many years, the family's medicinal shop business had been managed by him, so he was more familiar with this matter than anyone else.