Sanqiao Village is a very remote small mountain village, where the villagers live a peaceful life. Suddenly, one day, a 20-year-old boy broke the tranquility of the mountain village. The thing is this:

There was a young man named Qu Xin in Sanqiao Village. One day, he came to the pond outside the village alone to fish, and while fishing, he suddenly fell into the pond and passed out. After ten minutes, two villagers from the same village passed by the pond and saw a man planted in the pond with his head soaked in the water and his body motionless. The two hurriedly went over and carried the man to the pond, and immediately recognized the man as Qu Xin. A villager tried his breathing and pulse, but found that his breathing and pulse were gone. The two hurriedly used soil methods to rescue him for a while. Seeing that he still had no response, they had to give up the rescue and went to his house to call for help.

Time passed, and Qu Xin, who was lying on the edge of the pond, was the same corpse. Slowly, however, his limbs moved slightly. When his family and the villagers arrived, he had already turned around and sat up. Everyone was stunned, especially the two villagers who rescued him from the pond, and looked at each other in shock.

Qu Daikun's father, Qu Daikun, was an old farmer who was good at reading ancient books and had a good sense of business. When he saw that his son had inexplicably saved his life from the hands of the god of death, his mind turned around, and he immediately came up with an idea to make money. He first asked someone to take Qu Xin home, settle him in the bedroom and sleep, then sent everyone away, closed the door, and whispered to his son for a while. An hour later, Qu Daikun opened the door and solemnly announced to the villagers that his son Qu Xin had just gone to the underworld and had gone on a "shady errand."

Qu Daikun explained that the so-called "underworld" is a living person who deals with ghosts and gods and works for the "government of the underworld", and now his son is such a person. His son has seen many elderly people who have passed away in the underworld, and he has asked him to bring messages or ask his family about the situation. Anyone who wants to know the situation of their deceased relatives in the underworld can ask Qu Xin.

The people of Sanqiao Village were already a little superstitious. Hearing Qu Daikun's words, and the two villagers who saved Qu Xin, they all believed it and flocked to the Qu family to inquire. Of course, according to the rules, everyone did not come empty-handed, some with chickens and ducks, and some with Baijiu cigarettes.

Qu Xin sat cross-legged on the chair next to the Eight Immortals table in his main hall. No matter who came, he would first put the things he brought on the Eight Immortals table, and then ask about the situation of his deceased relatives in the underworld. At this time, Qu Xin always closed his eyes, his head swayed for a while, and there were words in his mouth. After a while, he opened his eyes, and began to talk nonsense, saying that some had left the underworld and reincarnated, some were suffering in the underworld, and some had become civil servants in the underworld.

For a time, the Qu family came and went, and the door was like a city. Not only did people from the village come, but also people from other villages came, so happy that Qu Daikun couldn't close his mouth. From collecting chickens and ducks to collecting RMB, from five yuan to ten yuan to thirty-fifty yuan, the Qu family soon "poverty reduction and wealth."

Soon, another strange thing happened, which made people more convinced of Qu Xin.

That evening, Qu Xin saw that the orange tree in his yard was already bearing fruit, so he couldn't help but salivate. He kicked up the tree with both feet, ready to pick oranges to eat. Unexpectedly, as soon as he got up the tree, he felt the world spin and fell down with a "plop."

The family heard the noise, rushed to take a look, and couldn't help but be taken aback. They saw Qu Xin lying on the ground with blood on his head, and he had passed out. The family quickly carried him into the house with their hands and feet, and hurriedly invited the village doctor Ma Bao. When Ma Bao arrived with the medicine cabinet on his back, he saw Qu Xin lying on the bed with his eyes closed, his body hard and completely breathless. He picked up a flashlight and shone Qu Xin's eyeballs, but there was no contraction reaction. After this simple examination, Ma Bao found that Qu Xin had almost no vital signs. But out of duty as a doctor, and because of Qu Xin's miraculous resurrection experience last time, Ma Bao stitched him up and gave him an infusion. However, one day passed, two days passed, and after three days, Qu Xin was still like a corpse without any sign of resurrection. Seeing this, Qu Daikun was so anxious that his hair turned white.

On the fifth day, a miracle happened, and Qu Xin, who was like a corpse, slowly opened his eyes and came back to life. After he came back to life, Qu Xin had completely forgotten about going up to the tree to pick oranges, and he had no idea what kind of "underworld errand" he had completed in the underworld.

The villagers all found it strange, but Qu Daikun proudly explained to them that Qu Xin went to the underworld this time to complete a very important "underworld assignment", so it took five days. Now that the mission was completed, King Yama was afraid that he would reveal the secrets of the underworld and deliberately made him "lose his memory."

Soon, Professor Li from the provincial hospital also knew about Qu Xin. Professor Li was also from Sanqiao Village, and when he talked to his family on the phone, they told him about this strange thing. Professor Li immediately took a few days off and came to his hometown, Sanqiao Village.

When the villagers heard that experts had come from the provincial capital, they all gathered around the Qu family to watch the excitement. After Professor Li saw Qu Xin, he carefully observed and thought that Qu Xin was a little abnormal. Therefore, he persuaded Qu Daikun to say: "You have to believe in science, there is no such thing as evil in this world? Send Qu Xin to the hospital for examination, or you will harm him."

Hearing Professor Li's words, Qu Daikun was very angry and shouted, "What nonsense. My son is a shady agent, and the whole village can testify!"

Qu Xin also helped his father and said, "I'm in good health, what are you checking for?"

Just as he was talking, suddenly Qu Xin's lips trembled. In less than a minute he let out a strange cry and collapsed unconscious in the courtyard. Professor Li wanted to go up to rescue him, but Qu Daikun looked at the surrounding villagers, gritted his teeth, stopped Professor Li, and said, "You don't have to worry about it, my son has gone to the underworld to do business again, and he will be back soon." After saying that, he carried Qu Xin back to the bedroom with his family.

But two days later, Qu Xin still couldn't survive. Qu Daikun was a little panicked, so he asked his wife to secretly ask the village doctor Ma Bao. Soon, Ma Bao came, followed by Professor Li. It turned out that Professor Li was sitting at Ma Bao's house, and they came together after hearing about it. Professor Li and Ma Bao urgently rescued Qu Xin for half an hour, but finally failed - this time, Qu Xin really died.

After the autopsy, Professor Li finally solved the mystery of the "negative difference." It turned out that Qu Xin was an epileptic. There are many clinical manifestations of epilepsy, in addition to convulsions and abdominal pain, there is another one called "tonic." Qu Xin's epilepsy is called "tonic." The first time he fell into a pond, if it was an ordinary person, he would definitely die, but Qu Xin first fell into the water after he fell into the water. After he fell into the disease, the bones and muscles of his whole body contracted very tightly, and his breathing stopped, so his nose would naturally not absorb water, so he would not drown. After he was rescued, the symptoms did not disappear and he was still in a coma. As time went by, the disease slowly disappeared, and Qu Xin naturally "came alive."

The second time Qu Xin fell from a tree, it was also due to an illness, and after falling, he suffered a trauma. The village doctor Ma Bao gave him daily infusions, which could ensure his most basic metabolic needs. Ma Bao stitched up his wound again, reducing the chance of a wound infection. These seemingly simple treatment methods provided help for Qu Xin miraculously survive five days after he died without eating or drinking.

Although Qu Xin was lucky enough to be "revived" twice, his condition worsened. After the last attack, because he was not treated in time, he caused cerebral edema and finally died of respiratory failure.

After listening to Professor Li's reasonable explanation, the villagers finally realized it, and Qu Daikun was even more regretful. Villagers often saw him sitting by Qu Xin's grave, muttering to himself, "Son, come back."