For a middle-aged man who couldn't wait to see Du Kang, in this ancient world of generations, it could naturally only be Guicheng Chenghuang.

"Lord Chenghuang." Du Kang reacted, and while greeting him, he glanced at the surrounding environment and found that he was in the City God Temple.

At the end of the substitute shift last time, Du Kang ended directly from the City God Temple, and now when he comes back, he is also in this position, no wonder the City God appeared in front of him for the first time.

"I wonder what form I took when I came? Flashing like a sudden appearance, or is it similar to teleportation, with obvious movements? Du Kang thought to himself.

However, he did not ask this question, but asked another.

"Lord Chenghuang just said that I haven't been there for a long time, how long have I been there?"

"It's probably one more hour and three moments a day, a cup of tea, two snaps of the fingers, and three moments of effort." Cheng Hong replied without thinking, and then asked curiously, "I don't know...... Why did Du Gongzi ask this? ”

"It's easy to know the years in the mountains in the world, but it makes Lord Chenghuang smile." Du Kang smiled slightly, thinking that Chenghuang could completely remove the "probably" in his words.

It's accurate to the moment and the tea, it's a bit outrageous that you can say it with a snap of your fingers (ten seconds) and an instant (one second), how much do you want to get off work, and this second is like a year, it's so clear!

Well, to understand these 007 immortals who have been working for hundreds of years...... Anyway, Du Kang has decided, even if he has the opportunity to be an immortal in the future, he will definitely not be, who loves to be an immortal! It's impossible to work part-time!

"So that's the case, how can you laugh? It's too late for the little god to envy! Cheng Huang unexpectedly understood in the direction that Du Kang said, and believed it, and the envy in his words was so thick that it almost overflowed.

As the saying goes, "one day in the sky, one year on the earth", the "heaven" in it refers not only to the "heavenly palace", but also to the existence of the cave heaven and blessed land, these places are different from the human world The flow of time is different, and Du Kang also used this to fabricate a reliable source for himself.

As for the fact that "one day in heaven and one year on earth" may be just a legend, and even in ancient times when there were gods, it did not exist?

Du Kang doesn't think so, in addition to his own personal experience, to explain it in an easy-to-understand way that everyone can easily understand, that is, Einstein's theory of relativity.

The special theory of relativity shows that the faster the speed, the slower the time, which is called time dilation, which is expressed by the formula t'=t/√[1-(v/c)²]; The general theory of relativity shows that the greater the gravitational pull, the slower the passage of time, which is also time dilation, which is expressed by the formula t'=t*√(1-2GM/rc²).

This is illustrated by the speed of time in two frames of reference (t and t'), as well as the speed of light and the mass of the celestial body, the radius, and the gravitational constant, which you must all understand, so I will not elaborate on it.

"There's nothing to envy, it's boring to stay for a long time, otherwise what would I do when I came out?" Du Kang changed the topic after sighing by the way, and said with a smile, "Let's get down to business, I think you can't wait, Lord Chenghuang." ”

"Hahaha, it's true, the little god has been looking forward to it for a long time, and finally seeing that he can get what he wants, it is difficult to suppress his excitement......"

There was a hint of obvious respect in Cheng God's attitude. Even if the two parties are completely free to trade relationship, he still needs to pay four times the amount of incense he earns to exchange things for Du Kang, so to speak, with the savings of these hundreds of years, but he is still willing and willing. Not to mention that now he has also discovered that Du Kang may be a "heavenly" immortal from the Cave Heaven Blessed Land.

"I'll just say, how can ordinary people talk like Tarzan Niangniang...... Now it's earned! Chenghuang thought to himself.

Such a big guy who can go to work for himself as long as four times the remuneration of incense, can also ensure the quality of work, and will never have any problems, maybe he can also get in touch with good performance...... Chenghuang even felt that he had not seen any hope for a promotion direction for hundreds of years, and suddenly there was a little light!

As for why such a big guy would be idle and run to work for himself, and only need such a small payment? Chenghuang was also very puzzled, but as soon as he encountered the matter of taking a vacation from work, this doubt was immediately put aside.

Anyway, the big guy can't figure out anything about himself, probably just idle and bored, so I want to find something new to do...... You can't really come here for your own little incense, right? You don't have to think about it to know that it's impossible, absolutely impossible!

"Ahem...... Then, the little god is now here to introduce to Childe, what you may need to do when you are substituted, and by the way, introduce the City God Temple? Chenghuang asked.

"Okay, I only know a little about the city god, and I would like to ask the city god to describe it in detail." Du Kang nodded.

"It's natural, it's natural!" Chenghuang nodded violently, and then hesitated slightly, "I heard Niangniang say that Gongzi can transform into the appearance of a little god and ......substitute for the little god."

"Oh, I forgot." Du Kang patted his head and performed [Camouflage Technique]. This time it wasn't through the system, the last time he clearly realized that the [disguise] provided by the system was also a spell, Du Kang remembered how the spell worked.

"Seems so......" Du Kang thought to himself, using a disguise.

In the blink of an eye, Chenghuang saw Du Kang transform into himself before his eyes.

"Hey, Childe's change technique is really unfathomable, and the little god can't see any flaws, it's just ...... It's like looking in a mirror! Chenghuang gasped, his eyes glowed, obviously using some kind of spell similar to the "Spirit Eye Technique", but he still couldn't see through it, and sighed sincerely from the bottom of his heart.

"Little Doyle." Du Kang smiled slightly, and suddenly another thought popped up in his heart.

"The [disguise] provided by the system has the restriction that it can only disguise the client, and I am not using the system to release the [disguise] now...... It stands to reason that it shouldn't be subject to this limitation, right? It only needs to be changed slightly......"

Between the slight fluctuations of spiritual power, Chenghuang saw that Du Kang had changed back to his original appearance, but this time, he was wearing a green shirt and his long hair was like ink!

The skin is like jade, and the characteristics of the appearance are very great, under this long-haired green shirt, all of them have been brought into play for a while, as if Du Kang was born to dress like this.

"Ah......" Du Kang touched his long hair and green shirt without a trace, feeling the smooth touch, and the corners of his mouth twitched slightly.

"Disguise, did you use the effect of the Transformation Technique?"

Thinking so, Du Kang didn't plan to change back, so he smiled and said to Chenghuang: "Don't let your subordinates see the two of you, Lord Chenghuang, when I officially start to substitute for the class, I won't be too late to change." ”

"That's what Childe said."

Chenghuang arched his hand and couldn't help but say, "When I saw Childe's outfit today, I realized that there really is such a person in the world who is so suitable for the description in that song......"

"Oh? What is it? Du Kang asked with interest.

"Mo Shangren is like jade, and the gentleman is unparalleled in the world!"

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