This method was proposed by Moratti.
There is just a flaw in this method.
Moratti was not sure whether Ding Dan would only stay for ten minutes after being summoned through the post office.
According to the rules, the summoned creature only stays in the terminal for ten minutes.
Why is it ten minutes? Ding Dan once asked Moratti this question.
The explanation given by Moratti is.
In fact, they are playing the role of postmen.
Normally, the function of Green Mailbox is to receive letters from hell.
It can be a random letter. This kind of letter can be regarded as a spam advertising message from an unknown source, and you cannot refuse it.
But it can also be a letter to a designated recipient.
This is also the purpose of the post office.
In fact, beings in other worlds can also send letters to hell through mailboxes.
The hell being who was sent away because of the letter actually acted as the postman who delivered the letter.
As for sending letters and reminiscing about old times, ten minutes is enough.
These were the original rules of the post office.
It can be seen from the rules that the purpose of the post office is to make the creatures in hell less lonely.
But most of the time, no one takes the initiative to send letters to hell.
And it is impossible for hell creatures to know people from other worlds.
Naturally, I won't send letters out.
Maybe it's the pressure of not being able to achieve results for a long time.
The rules have quietly changed.
It turned into randomly sending emails towards the terminal.
As long as someone approaches the terminal on the other side.
The post office will then publish that person's identity and address information.
Then let the creatures in hell send them out with the letters they wrote.
Of course, the latter part is not Moratti's original words.
But Ding Dan himself understood it this way.
In fact, Moratti's explanation is that communication is two-way.
Maybe the rules have this aspect in mind from the beginning.
Because only in this way can the creatures in hell be able to actively contact the outside world.
And you can also make your life in hell better through the help provided by the friends you know.
It's just that those stupid hell creatures misinterpreted the rules.
They usually tear the person summoned by the terminal into pieces to extract the water from the opponent's body.
Ding Dan breathed out lightly, and then took out the letter that he had prepared.
The recipient and receiving address are accurately written on it.
According to Moratti, all one needs to do is walk into the post office with the letter and fill out a form at the counter inside.
You can then send the message in person through the teleportation array.
The letter in Ding Dan's hand was naturally intended to be sent to Assistant.
Before leaving, he told Assistant to stay there, but not to go near the mailbox.
Judging from the containment data of Serial Number 124 - Green Mailbox.
As long as you keep enough distance from the mailbox, you won't receive letters.
When a letter is received, there will be continuous voice prompts in the mailbox.
Assistant is an excellent researcher and naturally knows these data.
When the mailbox starts to broadcast the voice prompt, the person whose name is read can only choose to answer the email.
Therefore, Ding Dan is sure that he can return to Present World through this method.
As for whether it's only ten minutes, we can only talk about it after we go back.
Moratti could not give an explanation for this.
Because Ding Dan is so special.
He does not belong to hell, but is a life coming from the terminal.
In addition, he was recognized by the will of hell and carried the 'King' Trait.
Maybe the rules are different.
Ding Dan walked into the post office alone.
The lobby of the post office is very spacious and bright.
Walking here gives you a calming feeling.
Compared with the desolate, dirty and messy place outside the post office.
This is simply not how hell should exist.
The ground was spotless, and there was no life moving around in it.
Ding Dan looked around and finally set his sights on a large counter not far away.
He walked towards the counter.
After approaching the counter, Ding Dan's eyes instantly narrowed.
Because he saw a pile of forms neatly placed on the counter.
And the text on the form is in Chinese.
This made him feel very confused.
Picking up the form, he walked straight out the door.
Moratti told him that he only needed to fill out a form and then he would be ready to send the letter.
To this end, Ding Dan also spent time learning how to fill in forms using hell text.
But at this time, the text on the form is in Chinese, which is very strange.
Moratti and Feis, who were waiting outside, looked at the form in Ding Dan's hands with confused expressions.
Moratti said in a deep voice:
"I see this has the word hell written on it."
Feis also nodded.
Ding Dan confirmed that he was not dazzled and that the text on the form was indeed where he was.
Seemingly sensing Ding Dan's thoughts, Moratti hesitated for a moment before speaking out:
"If you see the text above that is from your world, just fill it in with that text."
"I think these are rules for people in different worlds."
"After all, people in other worlds probably don't know the writing of hell."
Ding Dan After thinking about it carefully, I think this is also true.
He sighed and said:
"I am becoming more and more curious about the origin of this post office."
"It's amazing, but I think the word evil would be more appropriate."
After sighing, Ding Dan returned to the hall.
He lay on the counter and quickly filled out the form.
The content on the form is very simple.
Recipient's real name and address.
and the sender's name and address.
This reminded Ding Dan of his own experience of sending express packages.
However, such a simple content made Ding Dan difficult.
Because he doesn't know Assistant's real name, Assistant is just the code name of that person.
And what was the name of the place where he finally inserted the mailbox into the ground.
That is an undeveloped area without a name far away from the suburbs of Magic City.
After thinking about it, he finally chose to fill in the address of the home of C03 Containment Facility, who had a good relationship with him, and Sacrificial One.
After filling out the form, Ding Dan became anxious.
He wasn't sure if it would really work.
If it doesn't work, then we can only see if Assistant over there has a tacit understanding.
As long as you disappear long enough.
Then Assistant should be close to the mailbox, giving you the opportunity to send him a letter.
A minute after he left the form on the counter.
A humanoid creature wearing a green uniform appeared out of thin air.
This is the postal worker Moratti mentioned before, also known as the postman.
The postman picked up the form that Ding Dan had filled out, then looked at Ding Dan and said softly:
"You come with me."
After saying that, he stopped talking and turned around to lead the way.
Ding Dan felt happy because he knew the letter could be sent.