Luo Shengmeng has no feelings today

When Polnareff mentioned [backtracking] back then, Akutagawa Ryunosuke, who heard it for the first time, had thought that if he followed his own naming style, the first thing to do would be the backtracking algorithm.

It is a process similar to enumeration search: in a certain solution space, try to search, and when it is found that the current solution does not meet the target conditions, it will perform "backtracking" and return to try other paths.To put it simply, it is to achieve a certain goal as the end point, in a certain solution space, try all the solutions in turn, and return to the starting point if it fails or fails to reach the goal.

There are two points worth noting.

Purpose and space for reconciliation.

Unlike the ability to break through the cornerstone of this world and travel vertically, backtracking is a completely independent, similar but completely different power to the former.

The time it can jump is not long, at most 24 hours ago, and within the range of 24 hours starting from the time point when the ability was first activated, for example, starting from the current time point 0, 24 hours ago The time point is 1, so no matter which point Akutagawa reaches between 0 and 1, the furthest distance he can reach will never exceed 1 when he activates the ability to backtrack again.

This also means that if Ryunosuke Akutagawa wants to break through time and change the past, he must act within 24 hours. The later the delay, the less likely it is.

But unlike time travel, which has a cooldown, backtracking does not have any cooldown.

But the disadvantages are much greater than the former.

This is an ability that Reborn will despise as [tasteless] in the future.

……

Fifteen hours had passed since the death of the Rainbow Son. After the incident, no one had time to rest and sleep. Not only was it because of the anger and pain of losing his companion, but within 10 minutes of the end of the video, Bailan went to all parts of the world. It is also one of the reasons why the attack on the Vongele base in China was launched.

Everyone was so busy that their feet didn't touch the ground. The guardians flew to all over the world for support almost immediately. As the leader, Tsunayoshi Sawada didn't sleep a wink all night, while contacting reliable allied families like Gaberone , while urgently issuing orders to the heads of the bases to understand the situation in various places.

Strictly speaking, Akutagawa Ryunosuke is not a member of Vongola, although both the leader and the guardian have regarded him as one of their own.

For fifteen hours, even Lalmirch struggled to help after waking up, and there was obviously something wrong with Akutagawa Ryunosuke who locked himself in the room alone.

[backtracking].

Similar to but completely different from time travel, it is not an easy task to master a new ability.

But it is not difficult.

It is an established fact that the future Ryunosuke Akutagawa has the ability to go back, so Ryunosuke Akutagawa will definitely need this ability one day. What he has to do is to turn this future into reality now .

Change the past!

Akutagawa Ryunosuke's heart was burning desperately, as if he had bet everything on it.

That was the only hope he had left.

but.

——This kind of supernatural ability related to time travel is simply a curse for those of us who love each other.

What he said to Natsume Soseki when he didn't know Akutagawa but was kind to his senior Nigata, after a long time, the authenticity was verified again.

……

Fifteen hours have passed since the death of the Rainbow Son, and under the 24-hour limit of the retrospective ability, Akutagawa has not much time left to act.

Reborn received the letter at 08:30 p.m., and the agreed time was 07:30, so shortly after receiving the letter, around [-]:[-], he set off.

Bailan invaded the Vengley system and played the video three hours after Reborn's departure, that is, around 10:30. Taking this time as the death time of Rainbow Son, it is now the next day after fifteen hours. 01:30 p.m.

Going back 24 hours, Akutagawa can only go back to 01:30 yesterday afternoon.

It was five and a half minutes before Reborn received the letter.

Five and a half minutes, what can he do?

Back in the past, Akutagawa Ryunosuke had a dull headache because of his ability. At this time, he had just completed the mission on behalf of the consultant outside the door. He should have returned to his office to write a report and report the content in detail. Give it to Reborn.

But now Akutagawa obviously couldn't care less.

He looked at the date displayed on the phone, fell into a brief trance and stupefied, then turned around without saying a word, and ran towards Reborn's position with all his might.

He wants to tell the other party about the future.

—Don't go, you'll die.

As long as he said it, Mr. R would definitely believe him.

However, at the moment of meeting, Ryunosuke Akutagawa's mind was blank, and he directly hugged the small baby-sized Mr. in his arms.

His body trembled subconsciously, like an abandoned dog that had been abandoned and finally found, with an aura of fear all over his body.

"Ryunosuke?"

Reborn recognized the person's aura immediately, and didn't hide from being hugged suddenly at this moment, but just froze, with a flash of surprise on his expression.

"gentlemen……"

He didn't understand what the entanglement was, but it didn't prevent Reborn from seeing that his students were emotionally unstable. The last time they showed such flustered behavior was when they just met again.

All the speculations were suppressed, and Mr. Killer patiently patted the student's head.

"Well, I'm right here."

The black-haired, black-eyed man with snow-white temples regained his composure, took a deep breath, put down his respected husband, and then seriously knelt down in front of him, wanting to make the future less than ten hours away. Tell what happened.

He opened his mouth, wanting to say something.

But he couldn't speak a word.

Both sound and language were blocked in his throat, as if he had suddenly lost his ability to speak, and he couldn't speak a single word.

Akutagawa Ryunosuke's eyes widened slightly, and he involuntarily touched his throat with his hand, a look of disbelief flashed across his face.

He opened his mouth and closed it again.

Repeated several times, even Reborn's expression became more and more strange.

"what happened to you?"

Mr. Killer jumped onto the shoulder of the eldest disciple, opened his calm black eyes, and asked worriedly.

Unable to speak.

Any information related to the future cannot be revealed.

What about text?

The same is true.

The future information left by electronic devices will become a mess of characters, and the information left on paper will become undecipherable.

Similar to memetic contamination.

Reborn, who quietly watched the students randomly pressing a bunch of unknown symbols with their mobile phones, leaving symbols that looked like ghost symbols under the paper, did not say a word.

Akutagawa Ryunosuke was suddenly depressed.

He should have known earlier that changing the future is definitely not an easy task.

Especially since he is still an outsider who does not belong to this world, it is a matter of course that the fate of this world will not help him, let alone help, it is already considered as good as not to cause trouble.

"It's all right...Mr. R."

"You don't look like you're okay."

Reborn said calmly.

Akutagawa Ryunosuke didn't know what to say, he just lowered his head, sluggish.

"Did something happen during the mission? Or did you get some information?" Reborn thought about the other party's actions just now, "Does the mission target have superpowers? What did the other party do to you? So that you can't use it?" Information passed on?"

"It's still about me."

Reborn flatly affirmed.

"..."

Akutagawa Ryunosuke was still unable to speak, no matter whether he nodded or shook his head.

It is indeed related to Reborn, but the other party's guess is in the wrong direction.

But it was enough to convince Reborn.

This level of tacit understanding between the mentor and apprentice and partner cannot be achieved without sufficient trust.

Akutagawa Ryunosuke couldn't tell, but Reborn was able to investigate what happened to the other party just now, but the problem is that the abnormality of the other party was not caused by the past, but from the future.

No matter how Reborn investigates, it is impossible to find out the reason.

What's more, he who doesn't know the future is not in a hurry for this moment. After all, Akutagawa appeared in front of him intact. The time required for the intelligence department to work is at least a few hours to a few days to start-not to mention that it is impossible to find out.

He could afford to wait, but Akutagawa Ryunosuke couldn't.

There are only a little over five hours left before the children of Rainbow die.

This is the first backtracking.

……

Akutagawa Ryunosuke quickly calmed down.

While he can't tell the future, he can do other things.

In order to change the past, even if he did something unexplainable for a while, Mr. R would definitely trust him.

When he returns to the original point in time, and the language and writing are no longer polluted by memes for revealing the future, he will naturally tell the other party clearly about the backtracking.

At least for now—

Akutagawa Ryunosuke looked at the time.

Now is not the time to hesitate.

Going back to the past for the first time, Akutagawa Ryunosuke still had hope like fireworks in his heart, and even thought about whether to save the other Rainbow Children. After all, he was also someone who fought side by side in the past and was more or less a companion.

Just trying to persuade them not to go to the appointment is too difficult for Akutagawa Ryunosuke who has restrictions. After all, under the effect of meme pollution, he can't give any reason to stop, and the initiator is Yuni.

Speaking of Uni...

Akutagawa Ryunosuke frowned, his expression bright or dark.

Unlike the children of the rainbow who saw Uni with blank eyes on the projection screen at the Children of the Rainbow Gathering, Akutagawa Dragon War has never seen the girl from the beginning to the end, and naturally it is not clear that Uni is controlled by Prynne Well, he only knew that the invitation letter was really covered with the flame of death energy of the Rainbow Son of the Great Sky.

So now, even for the sake of Luche and Arya, he can't help feeling resentful towards the initiator.

After all, it was Mirufiore, the new family represented by Youni and Bai Lan, who made the murder of the Rainbow Children.

There were five hours left until Reborn received the invitation.

Akutagawa Ryunosuke calmed down, with a sullen face, quietly thinking about the action plan.

Because the information he said after going back to the past that does not belong to this point in time will be contaminated by memes, so...he can't be honest with anyone about the tragedy that is about to happen.

He has only one person, and he must find a way to stop all this alone.

After Akutagawa Ryunosuke and Reborn parted ways, they walked in the corridor outside the door where the advisor blocked the headquarters.

He exhaled slowly, stretched out his hand, and suddenly the Rashomon cat appeared and nestled affectionately in his arms.

"It doesn't matter, I will definitely stop it."

With a pair of pure black eyes like ink without highlights hanging down, Akutagawa murmured softly, his pace accelerated involuntarily, and the hem of the long black windbreaker curled up in waves:

"must."

……

The time starts counting down one minute and one second.

And this is a story about going back for the first time.