After returning to the apartment, Yi Han immediately set about refining the elixir. Prepare all the pills you need and put them aside.

At the same time, Yi Han lit the Dan furnace. Since Yi Han is still in the acquired realm, he can't use Taoist true fire, and can only use mortal fire to refine pills, but this is enough.

Refining the elixir, as far as Yi Han's personal understanding is concerned, can be divided into four steps.

The first step is to light the Dan furnace and preheat it for one hour to heat the entire Dan furnace in preparation for the second step.

The second step is to pour in the pre-configured liquid medicine, this is the pregnant pill liquid, the configuration of the pregnant pill liquid is very important, in the whole alchemy process, the pregnant pill liquid is the top priority, it is not only related to the success of alchemy, but also related to the quality of the pill. There is no room for sloppiness.

Generally speaking, each alchemist's pregnancy pill liquid is different, which is generally an alchemist's secret and will not be easily passed on.

Pour in the pregnant pill liquid to heat, and when the temperature of the pregnant pill liquid reaches a certain critical point, it is time for the third step, the third step, is to put the medicinal materials, the delivery of medicinal materials, it seems simple, but there can be no half of relaxation, not only to grasp the amount of delivery, but also the time, sequence, etc., which requires accurate grasp, but also needs to have a comprehensive understanding of the medicinal properties of medicinal materials.

As for the fourth step, it is to control the heat, after all the medicinal materials are put into the Dan furnace, it is to control the heat and slowly refine.

Therefore, alchemy is a meticulous work, which not only requires time, but also requires a lot of energy, and there can be no sloppiness, and any small mistake may lead to failure.

Yi Han has rich experience in alchemy, in the first life, he discussed the way of alchemy with Lao Tzu, and got a lot of inspiration from Lao Tzu, in the fifth life, Yi Han also has alchemy experience, so in this life, alchemy is not a problem at all.

Just when Yi Han was refining the pill, in the courtyard of the Yuan family, an uninvited guest suddenly came, this was a young man, about twenty years old, wearing a white suit.

He arrogantly rushed into the courtyard of the Yuan family, without the slightest scruples, "Yi Han, tell that kid to come out, just say that his grandfather Du Bing is here, let him get out and see me!" This young man in white is none other than Du Bing, the second young master of the Du family, and Yin Xiaoqing's engagement partner.

"Who are you, dare to go wild in my Yuan family. Yuan Feng walked out of the inner room and drank all over.

Du Bing stared at Yuan Feng for a few moments, and seemed to have recognized the other party, "You are that Yuan Feng, Yi Han, let him come out...... I heard that he is with you. ”

"Who are you?" Yuan Feng didn't recognize Du Bing.

"Hey...... Who am I? Have you heard of the Du family, I am Du Bing, don't give me nonsense, hurry up and ask Yi Han's kid to get out of here, if you don't come out again, don't blame me for being rude!"

At this time, there was still a person next to Du Bing, that person was Yin Bing, I saw Yin Bing smiling bitterly, and made a helpless gesture to Yuan Feng, meaning you look at it, I can't control him.

Yin Bing and Du Bing grew up together in open crotch pants since they were children, although they rarely saw each other when they grew up, the relationship between the two was still very good.

Hearing that it was Du Bing, Yuan Feng knew what was going on, and said to Du Bing: "Yi Han has already left, not here......"

"Gone, where did you go?" Du Bing muttered, as if he didn't believe it.

"I don't know about this, maybe I'll go back to school, right?" Yuan Feng naturally wouldn't tell Du Bing that Yi Han was refining pills at home at this time.

"I'm back at school, it's just right, I haven't been to Imperial Capital University for a long time, in that case, let's go to the school to find him, Bingzi, let's go, let's go to school, just in time to see your sister, she should be in school now!"

Yin Bing smiled helplessly, he could only follow Du Bing to Imperial Capital University, Yin Bing was not easy to meddle in the matter between his sister and Du Bing, one side was his sister, and the other party was his best buddy, Yin Bing could not have a position at all.

In fact, Yin Bing knew that his sister didn't like Du Bing at all, but Du Bing liked Yin Xiaoqing, and what she liked was hopeless. So after hearing about the matter between Yi Han and Yin Xiaoqing, he immediately rushed to Kyoto from the family to see who Yi Han was.

After Yin Bing and Du Bing left, Yuan Feng sent a message to Yi Han and told him about Du Bing.

At this time, Yi Han has reached a critical moment, all the medicinal materials, almost all have been put into the Dan furnace, and now there is still one medicinal herb left, as long as this medicinal material is put in, it will be done, and the next thing is to control the heat.

Yi Han's refining this time is the 'Qi and Blood Pill', this kind of pill can replenish qi and blood, and the biggest effect is to enhance the qi and blood in the body of the martial artist, thereby improving the muscles and bones, strengthening the body, and it is the most suitable pill for the martial artist to take, without any side effects.

With the input of the last medicinal herb, Yi Han also breathed a sigh of relief, now it seems that everything is fine, nothing has happened, now there is only the heat left, as long as the heat is well controlled, there is another hour, it should be able to be successfully refined.

At Imperial Capital University, Du Bing and Yin Bing walked on campus.

I saw Du Bing's eyes, scanning the surroundings from time to time, and the light in his eyes appeared from time to time, "Sure enough, it is worthy of the Imperial Capital University, there are many beauties! Going to college here is a kind of enjoyment......

"Why do you want to come here, why don't you just come, anyway, you're fine now......" Yin Bing said casually.

Du Bing thought about it seriously, "This is a good idea, not only to see beautiful women, but most importantly, to see your sister every day......"

Yin Bing was talking about fun, but he didn't expect Du Bing to take it seriously, "You don't really want to come, if you come, my sister won't be annoyed to death!"

"No, I must come, if I don't come again, Qing'er will be snatched away, where is the Yi Han boy, take me to him......"

Yin Bing pursed his mouth, "Didn't I say that there is nothing between my sister and Yi Han at all, it's just a rumor." My sister doesn't accept you, she has nothing to do with Yi Han, and Yi Han already has a girlfriend......"

Du Bing's eyes lit up, and he seemed to be interested, "Yi Han has a girlfriend, who is it?" Take me to see, he dares to hit your sister's attention, I also want him to take a look, I ......"

Yin Bing was taken aback by Du Bing's words, "You are crazy, if you dare to fight Wen Yujing's idea, I can't save you, do you know how the Ye family was destroyed, it was because Ye Tian's kid didn't know whether he was alive or dead, and he was eyeing Yi Han's girlfriend, which led to the destruction of the Ye family......"

PS: Recommended tickets, collections, and brothers who haven't been rewarded, now there are only three fans, when will it be ten, even if you reward a dollar, it's not a number......