"That group of people, even during the Qin dynasty, were very active, and the most widely known among them was Xu Fu."
"The cave discovered by the ancestors of the Zhao family, it's unclear which alchemist left it."
"But in that place, the old ancestor of the Zhao family found the method to refine Yang Iron Sand."
"Yagyu Junichiro, on the other hand, acquired the method to forge another material, Yin Mysterious Metal."
"Once Yang Iron Sand and Yin Mysterious Metal were fused, they could even create a treasured material known as Yin-Yang Mysterious Metal."
Without Zhao Chunqiu having to continue the story, Su Fan could guess the rest.
Later, the Zhao family and Yagyu family from Japan were forced to cooperate.
Neither side could forge Yin-Yang Mysterious Metal on their own, a special material researched by ancient alchemists.
However, it seemed that the Yagyu family from Japan wanted to completely control the technique for forging Yin-Yang Mysterious Metal and subsequently slaughtered the entire Zhao family.
As it turned out, Su Fan's judgment was completely correct.
The events that Zhao Chunqiu described later matched what he had in mind, almost exactly.
However, what Su Fan was concerned about now was one issue: "Old Zhao, did the Yagyu family's assassins get the method to refine Yang Iron Sand?"
Zhao Chunqiu shook his head: "The method to refine Yang Iron Sand was not obtained by the Yagyu family."
"After the Zhao family was annihilated, I was the only person left in the world who knew how to refine Yang Iron Sand."
At this point, Zhao Chunqiu had originally intended to have someone bring paper and ink for him to write down this secret and hand it over to Yin Zhaohong.
But suddenly, he discovered something astonishing: the toxins in his body seemed to have been almost completely neutralized!
Zhao Chunqiu looked at Su Fan in disbelief, astonished: "The poison in me, you've neutralized it?"
Su Fan nodded: "The poisons in Old Zhao have been mostly neutralized by me."
"However, the hidden injuries you suffered back then have never healed."
"This time it's old wounds not yet cured, and new ones added."
"If Old Zhao wishes to return to peak condition, he will require a series of long-term treatments."
"It will take at least three months, and up to half a year before Old Zhao can fully recover."
If Su Fan had spoken to him in this manner before treating his poison, Zhao Chunqiu would have surely thought Su Fan was spouting nonsense.
But now, having witnessed Su Fan's miraculous medical skills, he truly believed.
Although Su Fan had also saved Yin Zhaohong before, he was not aware of the specifics of Yin Zhaohong's condition at the time.
It was only after he had been victimized himself that he realized the formidable capabilities of Tang Tingwei and his disciples.
Upon hearing Su Fan's words, Zhao Chunqiu uncertainly asked: "Do you mean, after receiving treatment, all these hidden ailments and chronic injuries could actually be healed?"
"And after the injuries are completely healed, I could even return to my peak condition?"
Su Fan nodded solemnly: "Exactly, I would not speak carelessly to Old Zhao about such a matter."
Zhao Chunqiu was overjoyed: "Good! Very good!"
"If you can completely heal my chronic injuries and let me return to peak condition,"
"I will give you the secret manual for forging Yang Iron Sand that the old ancestor of the Zhao family obtained."
Su Fan was very interested in Yang Iron Sand, but he didn't expect that Zhao Chunqiu would actually be willing to exchange the formula for forging Yang Iron Sand as payment for the treatment.
After pondering for a moment, Su Fan said: "Old Zhao, is it possible for you to go to the Eastern Medicine Company for follow-up treatment?"
There were some things that Su Fan did not want to discuss here.
He could share the matter about Pareia Fortress with Yin Qianyue, but he could not tell it to the other members of the Yin family.
"This..." Zhao Chunqiu hesitated, glancing at Yin Zhaohong.
Although he had already taken action three times on behalf of the Yin family, Tang Tingwei and his disciples' troubles were still not completely resolved.