Zhang Yu smiled, it seems that he needs to popularize the common sense of making Dan to customers again, he is also happy to do this, and patiently explained: "The so-called second Dan is also called Waste Dan, but our store doesn't think so." The second pill is a product of the alchemist's failure to make alchemy, which is formed by the overflow of the elixir's aura when there is a slight error in the grasp of the heat or baking time. This kind of secondary pill contains less spiritual power, so the effect is minimal, but it is better than nothing, so there are many Taoist friends who are willing to buy a batch with low-level ones. It is said that some Taoist friends have taken some times and feel that the effect is still good. I don't know if you're interested?"

"Won't alchemy fail produce poisonous surnames? Can you still take it?" asked the gray-clothed man curiously, obviously not ignorant of the way of alchemy.

"Hehe, Daoyou is talking about another kind of alchemy failure product, that is the real waste pill, usually a major mistake was made during alchemy, or the heat was too much, which caused the change of the surname of the API in the pill, and finally formed a waste pill with a poisonous surname, this kind of waste pill is not only useless to our cultivators, but contains a trace of poisonous surname, and taking it is harmful but not beneficial. However, please rest assured, this kind of waste pill and secondary pill are very easy to distinguish, not only the form and color change, but also the waste pill has an obvious pungent smell, which is very different from the medicinal fragrance. Daoyou checked it a little carefully to know whether what the old man said was correct. After Zhang Yu finished speaking, he took out a few Qingling Pill Ci Dan and handed them to the gray-clothed man for appreciation.

The gray-clothed man carefully inspected it for a moment, sniffed vigorously in front of his nose, and nodded: "What the shopkeeper said is indeed true, this time the Dan really still contains a trace of spiritual power, and according to what the shopkeeper said, in exchange for five Qingling pills and twenty pills of the second pill." After saying this, the gray-clothed man took out a dark brown slightly translucent stone, which was the common earth surname middle-grade spirit stone.

"Fellow Daoist, please take it!" Zhang Yu divided the Qingling Pill and Cidan into two medicine bottles and handed them to the gray-clothed man.

After the gray-clothed man gradually walked away, Zhang Yu showed a mysterious smile and said proudly to the shop guy next to him: "Hehe, I've fooled a fool again! Cidan doesn't have a poisonous surname, and it's harmless to eat it, but its spiritual power is too weak, even if you eat twenty grains, it's meaningless, it's a waste of spirit stones." But since he can get a mid-level spirit stone, it doesn't matter if he wastes a few low-level spirit stones, haha! How about it, I'm right, last time I received a lot of second pills from the Yun family alchemist at a low price, and I sold some of them occasionally, and I made a lot of spirit stones!"

The twenty-year-old guy nodded again and again when he heard Zhang Yu's words, and said complimentingly: "That's, you are a well-known Dan Dao Grand Master in our Liuyunfang City, and there are a few people who dare not believe what you say." It's just that this stupid guy thinks it's useless after eating Cidan, and he probably doesn't dare to attribute the reason to your old age. Alas, if I can learn half of your skills, why don't I worry about not being able to get a good errand in the immortal cultivation world!"

But in the next few months, there will always be people who come to buy Ci Dan, and there is even a middle-aged monk in black who is also wearing a cloak and buys more than a hundred Qingling Pill Ci Dan for thirty spirit stones at a time. This made Zhang Yu a little puzzled, could it be that this kind of second pill really had some effect? He even took more than a dozen Qingling Pill second pills himself, but he didn't feel any effect, I really don't know what the use of those stupid people buying these many times pill is.

The stupid gray-clothed man in Zhang Yu's mouth is naturally Zhao Di, anyway, he doesn't lack spirit stones, so why not buy some Cidan to try.

Before taking the Qingling Pill, Zhao Digui put one of them into the Qiankun Xiaoding like a god, and then took another Qingling Pill.

A cool aura of spiritual power came from the abdomen, slowly spreading along the meridians to the whole body. Zhao Di followed the mental method of the fifth layer of the "Chasing Waves", controlled a trace of aura to circulate all the meridians throughout his body, and finally slowly introduced it into the dantian...... Repeating it over and over again, refining the spiritual power from the Qingling Pill bit by bit, and finally after a night, Zhao Di completely refined this Qingling Pill.

Before taking the next Qingling pill, Zhao Di didn't forget to take a look at the pill in Xiao Ding. As a result, what made him ecstatic again was that the pill in Dingzhong had an extremely obvious change, not only was the aura several times more abundant, but also translucent, and exuded a strong medicinal fragrance.

Zhao Di had an idea, and experimented with a Qingling Pill and a few Pills.

After his repeated experiments, it was found that Xiao Ding could increase the spiritual power of the Qingling Pill to six or seven times the level at most, and it would take two nights. Xiao Ding can also promote the Qingling Pill Ci Dan to an existence that is slightly inferior to the ordinary Qingling Pill, which only takes one day, but it can't continue to improve.

These two pills cultivated by Xiao Ding, Zhao Di did not dare to rush to take them, who could guarantee that there would be no side effects. He managed to get a few hares, crushed the elixir that had been lifted by Xiao Ding, took out a little powder and fed the rabbits, and carefully observed if there was any discomfort.

As a result, no adverse reactions were observed, except for the rabbit which seemed to become exceptionally energetic and active.

So Zhao Di began to use Xiaoding to cultivate the pill with confidence and take it.

Since then, at the beginning of each month, when Liuyunfang City is at its most lively, there will always be an inconspicuous monk wearing a black gauze cloak to buy a few Qingling Pills from various pill shops, and occasionally buy a batch of Dan. Because there were so many monks dressed in this way, and the things they bought were very ordinary, no one paid much attention to them.

Soon after, the monk began to buy the Cleansing Pill, which was superior to the Qingling Pill. This elixir can not only enhance the cultivation of monks above the ninth level in the Qi refining period, but also have a certain effect of washing the marrow and changing tendons, washing away impurities in the body, and improving the qualifications of monks in the Qi refining period, and the price is also as expensive as sixty or seventy spirit stones a piece, and very few are sold, and not every month there is this kind of elixir for sale. The Cloaked Monk could only buy two or three at a time.

Not only the elixir, but also the goal of the cloak monk is all kinds of magic weapons, classics, talismans, blank rune paper and other items, every time I buy not much, they are all two or three hundred spirit stones, but the total number of spirit stones spent is very amazing. It's just that there are not a hundred or eighty monks wearing black gauze cloaks in the Fang City class, and the cultivation level ranges from the third to the thirteenth layer of the Qi Refining Period, and no one can distinguish the Zhao region that is mixed into it.

Such stories have happened again and again in Liuyunfang City, year after year. Liuyunfang City has ushered in more and more newcomers, and it has also witnessed batch after batch of monks growing in cultivation and becoming a member of the immortal cultivation world.

And Zhao Di, who hadn't come out to set up a stall to sell talismans for a long time, had long been forgotten by everyone. After all, a low-level talisman maker like him has never been lacking in Liuyunfang City.

The only one who still remembers Zhao Di is probably the old man Yun of Yunxian Residence. One day five years later, Old Man Yun, who was worried that the lease had expired, came to the pavilion rented by Zhao Di and found that the prohibition of the pavilion was in a state of activation, so he couldn't find out the situation inside. Old Man Yun, who had been transmitting the sound to the pavilion for a long time, but had never received a response, was forced to use the spare magic disk to close the ban and enter the pavilion. Old man Yun only realized at this time that the building had already been emptied, except for the broken rune paper scattered everywhere on the ground, where was Zhao Di's figure.

Incidents like this that low-level immortal cultivators disappeared for no reason, and it happened in Liuyunfang City almost every month, and most of them never appeared in the immortal cultivation realm again. It is conceivable that it is very likely that he has already killed Huangquan in a tragic way.

Old Man Yun obviously regarded Zhao Di as this type, sighed slightly, and left the pavilion.

It didn't take long for the pavilion to have new occupants, and soon, Old Man Yun had forgotten about its previous tenants.

(Ask for recommendation votes, ask for a collection of this book!By the way, ask for a sub-edition for the comment area, responsible for giving the essence!)