Greentown has long been the so-called smog city, their mayor has always wanted to develop not the environment, so the city has built countless heavy industry giants, which naturally caused the air quality to plummet.

A government report pointed out that in the nearly 100 years from 1920 to 2019, the pollution index of country Z continued to rise, until 2000, when the economy developed completely, there was a "blowout", and when the moon observed the earth, it can be seen that the original white atmosphere has gradually become gray, all thanks to PM2.5 particles and PM10 particles in the air.

This is not the case in the Xianyuan Continent on another plane, they are still in an agricultural country, and they have lit up some of the skill points of mecha manufacturing, but they have not yet reached mass production, and the mecha only belongs to the private collections of a few top masters among everyone. It is also because of their backward industry, the air in the Xianyuan Continent is livable and will not poison people to death.

Of course, it doesn't mean that the earth will kill people, but it will bring some damage to people's lungs and bronchi, until Bai Ye traveled in one night, and found that the Yuan Li in his body had turned thick black, and he realized that it was probably because of the air that it caused the gray-black Yuan Li Sea to turn black in the dantian.

Bai Ye withdrew herself into the space and let Sheng Ji see the black Yuan Force, the girl leaned over and sniffed it lightly and began to cough violently - coughing until her eyes were teary and her cheeks were red, and her originally cold face actually became a lot more delicate. Sheng Ji said, "Look at your dantian, the qi of luck is all black dust, and there are even toxins, probably because the earth's environment is too dirty." ”

Bai Ye began to recall what he had eaten in the Xianyuan Continent, and organized it into a book, the most commonly eaten was the wild fruit, I don't know what it was called, I just remembered that the skin was purple, just like an apple that could be peeled, and the taste was soft and sour, he could eat more than a dozen of them at a time. For example, the meat quality of what double-headed fish and what five-legged pig is also a first-class stick, you don't need to cook too much, just like the flower chicken in "Shooting the Condor", with a bag of lotus leaves, wrapped in mud, not to mention how fragrant the roasted taste is. Of course, the quality of meat is also different from that of the earth, and it is elastic and delicious.

Bai Ye swallowed his saliva and said to Shengji, "You say, is it possible that I ate too well." ”

Shengji spitted "You eat well, you call junk food overintake that leads to an increase in toxins in the body, and what have you watched during this time???? have you watched any movies???"

Bai Ye's face turned red all of a sudden, he forgot that the system was "attached" to him, and what he saw was equivalent to what Sheng Ji saw, so Sheng Ji saw it............!!!!!!!

White Night quickly withdrew from the space, covered his ears, pretended not to hear Saint Ji's crazy thoughts, and burrowed his head into the quilt to pretend to be a penguin.

In the afternoon of the same day, after discussing with Ye Qingshan, Bai Ye decided to go back to the Xianyuan Continent again today to ask about the things that were not clear.

When Bai Ye returned to the Xianyuan Continent, it was the middle of winter, which was nothing to Bai Ye, and it was also nothing to the old man of Kunshan.

The old man of Kunshan has lived for more than 100 years, living on an island outside the world, and time has been repeating everything he has done in the past day after day, and it is no longer fluid, but observable and linear. It wasn't until the appearance of White Night, the offspring of that couple, that he brought some light to his ancient life. When the white night was gone, his life returned to its former peace, and occasionally he looked back at the sky and wondered if his young master was well.

At that time, it was the first snow, and it was six months after leaving Bai Ye, the old man in Kunshan set up a coal stove, and made a Wei Cai (something similar to cabbage) stew according to the stew method taught by Bai Ye in the past, and added some rhizome food to it, which was soft and delicious, and when he was holding a bowl and preparing to eat, he heard a knock on the door of duang~duang~ outside the cave, mixed with the hearty laughter of the young man

"Grandpa, I'm back!"

The old man in Kunshan put down the dishes and chopsticks and ran to open the door tremblingly, not thinking that the door was really a white night, the old man burst into tears, introduced the white night into the cave, took out a bowl of hot rice for him from the pot, and added some fire to the fire, before he sat down and began to eat with the white night.

At this time, the old man of Kunshan felt the real feeling of "one day in the sky, one year on the earth", and asked the old man in the white night how long it had been since he left last time. The old man said that only eight months had passed.

"Eight months!?How is it possible??? "The last time I came, it was twelve hours to a year, and it was only twelve hours since I last came, how is it possible??"

The old man of Kunshan pondered for a moment and said, "Do you know the plane of time?" The old man believes that in the past, the timeline between the earth and the Xianyuan continent was more than a year apart, because the time and space in the middle were solid and rigid, and could not flow. Until someone keeps going in and out of time, disturbing the order of time--" The old man smiled, and then said, "Of course, I am not accusing you, everything that is created is to be destroyed. After all, the old man is looking forward to the moment when the timeline of the two realms is the same. ”

After listening to the old man in Kunshan, Bai Ye's heart was a lot more relieved, and he remembered the purpose of his arrival this time, so he forced the black yuan force he had practiced in the afternoon to show the old man in Kunshan, and the old man couldn't help but be shocked.

"The old man has been cultivating for many years, and he has never seen such a filthy Yuan Force, and it is only because you are a yin and yang god body that you are now in a strong body. If you can't cultivate in that life, then you can follow what your uncle said, just come and practice at night. ”

Bai Ye thought about Ye Kai, who was now about to enter the Immortal Gate, and said softly, "Old man, I want to ask you, if someone on my side wants to cultivate Yuan Force, how to lead him to the beginning." This person has a pure heart and a righteous spirit since he was a child, and Ye'er intends to let him go into the world with me, but I don't know-"

The old man of Kunshan twisted his beard and thought for a moment, and said, "It's not impossible to use the demon beast yuan power to force out the yuan power contained in his body, but this method is too violent, and there is another method that is to bring him here when you are promoted to a transcendent body, and then cultivate." But the time span is too long, I'm afraid you won't be in a hurry...... Ye'er, you have been practicing here for the past few months, and when you go back, bring him four demon beast primordial spirits, but remember, you must be by his side to protect the Dharma when he is doing qi, otherwise his life may be in danger. ”

Bai Ye thanked the old man, and after talking about the business, he remembered the bag of pastries he had brought with him, and handed it to the old man in Kunshan with a wicked smile: "Grandpa, this is Ye'er's filial piety to you, I heard that you love sweets, so I brought some back from the earth." ”

Half a century ago, the old man of Kunshan had eaten the dessert of the earth once, which was a delicate pastry brought by Bai Ye's father, and the young man at that time was like the young man now, smiling purely, "Old man, this is for you, you have to taste it, Xianyuan can't find such a delicious thing in this broken place." ”

The old man of Kunshan trembled and took the dessert in Bai Ye's hand, he didn't think that the taste was the same as back then, the old man's eyes were hot, and he almost lost his voice to call out Bai Ye's father's name, but he couldn't help it.

It's time to tell Dian Baiye something, the old man of Kunshan thought.