Although these two men are not brothers, they have very different ways of cultivating. Yuan Zhengqian is proficient in the art of the room, that is, the technique of collecting yin and supplementing yang, so as to cultivate internal force. This technique is not only indecent, but the women he picks up will all be exhausted and the fragrance will die. Therefore, the people in the rivers and lakes, whether they are underworld or white, are extremely disdainful of Yuan Zhengqian.

And Fang Zhengkun is refining pills and cultivating internal strength. Although these two methods are the same secret of Taoism, this method does not involve obscenity and does not harm people's lives, so although Fang Zhengkun and Yuan Zhengqian are brothers, their reputation in the rivers and lakes is much better than him. But this person is obsessed with alchemy and has little interest in the battles of the rivers and lakes, and it is very rare to see him appear.

He came here because he was invited by his senior brother Yuan Zhengqian to lead him to see Han Jinhu, so that he could find an official position in the imperial court. After Cang Yunhai rescued Xu Pu, Yuan Zhengqian was afraid that Han Jinhu would find out and blame him. But he had to accompany the escort himself, and he lacked skills, so he begged his junior brother to help find Xu Pu and get rid of the troubles.

Fang Zhengkun was not very interested in official positions, but he couldn't bear the repeated urging of his senior brother, so he went south to Xuzhou. Unexpectedly, as soon as he arrived in Xuzhou, Yuan Zhengqian not only did not lead him to see Han Jinhu, but begged him for help. The two brothers have been studying art with their teachers for many years, and the brothers have something to ask each other, and Fang Zhengkun is not easy to refuse, so he and He Linfeng and others searched for Xu Pu around Xuzhou.

When He Linfeng met Xu Pu, Fang Zhengkun was not far away. When he heard that there was a fight, he thought that He Linfeng might have met the enemy, so he hurriedly followed the passers-by to check, and when he saw a child following Cang Yunhai beside him, he thought that this was the goal of their trip. Fang Zhengkun looked at this son carefully, and saw that his eyebrows were clear and his eyes were burning, and he knew that he was a smart person at a glance. Fang Zhengkun was secretly happy in his heart, and he was determined to coax the child into his hands.

It turned out that this Fang Zhengkun was obsessed with alchemy, and since he was twenty years old, he began to alchemy and take pills. Taking the elixir can not only enhance the internal strength, but also make the face permanent. He is now over sixty years old, but his hair is not white, his face is not old, and he is still in his forties, because he has been taking the elixir for a long time.

That said, there are significant drawbacks. Although taking the elixir can enhance the internal strength, after reaching a certain level, it will encounter a bottleneck, and then taking the same kind of elixir will have little effect. Fang Zhengkun has been refining pills for more than 40 years, and he has refined and taken most of the pills, so in the past few years, Fang Zhengkun's internal strength cultivation has made little progress, and there is even a tendency to regress. Fang Zhengkun was deeply worried about this matter.

There is a more important point, although there are various benefits of taking pills, but most of the pills need to be refined with lead and mercury and other substances, such items are highly toxic, long-term use, toxins gradually accumulate, to this day, Fang Zhengkun is already highly toxic to the bones, and the pain is unbearable when attacking. Later, Fang Zhengkun accidentally got a Dan Sutra called "The Great Essentials of the Immortal Pill", which mentions an elixir called Yuanyang Dan.

The book says: "The one who is the Yuan Yang is also the pure Yang of the Ben." All diseases and premature life of people are due to the loss of Yuanyang, if Yuanyang is full, then all diseases will not invade and will live forever. This Dan is made of gathering Tianyuan, taking it, it can dispel all diseases, prolong life, take it for a long time, and can live forever. ”

It's just that the refining of this Yuanyang Pill is not only time-consuming and laborious, but also sensational: it requires a minor boy to be fed with a special pill every day, and three hundred and thirty-three days is the first order, for a total of nine hundred and ninety-nine days of the third order. At noon on the thousandth day, under the positive sun, it was burned with fire, and after the body was incinerated, there was a silver pill in the ashes, which was the Yuanyang Dan. The higher the talent of the boy, the more effective the elixir will be.

Fang Zhengkun read it and was overjoyed, even if he found a boy and concocted it in the book. After three years of Dancheng, after Fang Zhengkun took it, his internal strength really increased greatly, and his appearance seemed to be a few years younger, but the poison on his body could not be resolved, and he still had regular attacks. Despite this, Yuanyang Dan is effective after all, so Fang Zhengkun found another child and continued to concoct it according to the method in the book. It's been more than a month now.

When Fang Zhengkun searches for children, he needs to distinguish his talents and experience through the appearance and speech of children. So the first time he saw Xu Pu, he knew that this son was very talented, and he had the evil idea of using Xu Pu to refine Yuanyang Dan. That's why he shook down the sea of clouds with internal force, abandoned He Linfeng and left Pisces Town with Xu Pu.

Although Xu Pu is smart, after all, he is young, and he was born in a wealthy family, so he believed Fang Zhengkun's words for a while.

Fang Zhengkun coaxed Xu Pu to believe in himself, so he took him out of Pisces Town and rushed all the way to Xuzhou City.

Outside Xuzhou, Fang Zhengkun didn't dare to enter the city, but found a tea stall on the side of the road, drank tea and ate snacks, and waited patiently until dusk, then took Xu Pu into the city. After entering the city, he didn't dare to take the main road, so he only walked around the alley, lest he meet the people of the Jinyi Guard. After walking around the alley for a while, he finally returned to the inn where he had stayed.

After entering the guest room, a little Taoist boy came out of the back room and saluted Fang Zhengkun and said, "Master, you are back." ”

Fang Zhengkun snorted, didn't speak, took Xu Pu into the back room, and said to him: "You wait for me here, I'll be back soon." If someone calls the door outside, don't open it. ”

Xu Pu didn't know what he was going to do, so he nodded.

Fang Zhengkun said to the child: "You come with me." With that, he left the room with Dao Tong.

Xu Pu was alone, sitting at the table, guarding the lonely lamp, waiting for Fang Zhengkun to come back. Thinking of talking and laughing with Cang Yunhai in the morning, but being separated from him at night, I felt sad in my heart.

Thinking of parting, Cang Yunhai vomited another mouthful of blood, and couldn't help worrying about him, but thinking that he was lying outside the medical hall, Fang Zhengkun left the silver and let the doctor take care of it. Although the doctor is greedy for money, he is quite good at medicine, and he will definitely be able to heal Brother Cang's injuries. It's just that Brother Cang is very greedy for cups, and I hope that after I leave, he can control himself and not drink.

Thinking of the wine, Xu Pu suddenly remembered that the gourd in the sea of clouds was still on him. So he took the gourd off his waist, rubbed it in his hand repeatedly, and said secretly: Brother Cang is good wine, but he can't live without this gourd; he said that this gourd was given by the old man, although he doesn't know who this old man is, but he must be very good with Brother Cang. Since this gourd is so important, I must take care of it, and he will return it to him when he sees each other in the future.

After thinking about it for a while, Xu Pu suddenly felt a chill on his body. At first he didn't care. After a while, I felt that my body was getting colder and colder, and finally I couldn't help but start shivering, my mind was sinking for a while, and my body was unspeakably uncomfortable.

Xu Pu said secretly: Why did you suddenly become cold like this? Could it be that I am sick?