The day he got sent back

Kuroba Kaito was in emergency surgery due to a magic trick of his going wrong and needing emergency burn treatment, while he was in surgery though he heard a voice

"Do you wish to change the past?"

"What?"

"Do you wish to change the past?"

"Yes"

"Then you shall be sent back to the past, however I cannot send you back the way I originally planned to due to the fact that you are basically immortal"

"Stupid Pandora"

"In any case I will physically send you back to the past, you will have to disguise yourself so that you do not scare people by looking as your younger self as they get older"

"I know and can accept that...will...will anyone remember these events?"

"They shouldn't to the best of my knowledge, once the timelines line up as far as I can figure no one will remember the original timeline where there was so much loss when taking down the Black Organization, they will also never remember your accident"

"What will personally happen to me once the timelines catch up?"

"That I do not know, there is a chance the two of you will cancel each other out causing both of you to cease existing, or you personally will cease to exist"

"I see"

"I will help you with creating a name and false background, the physical disguise will be up to you"

"I understand"

And so Kuroba Kaito is physically sent back to the past with his wounds completely healed and everything he needed to know about his new identity in his mind. As such as soon as he knew what he would look like he became Asakura Kenta. He quickly realized that he had been sent back about three years before he had discovered that his father was the original Kaito KID, before he had discovered that his fathers accident wasn't an accident, before Snake had entered the picture and revealed he had been the one to murder his father. He also realized that more than likely both Furuya and Akai were both still deep undercover in the Organization, but that didn't mean he didn't start looking out for them knowing already that Akai would be ousted first due to a mistake by another agent and as such simply waited for his chance to reveal himself. Once his younger self started doing KID heists he became his younger self's mentor alongside Jii and once Snake entered the picture started doing what he could to draw Snake's attention from his younger self

Present

The other three didn't even notice that Kaito's mind wasn't fully in the present but Kaito had those thoughts flash through his head so quickly it wouldn't have been noticed in the first place by anyone but those three, Hattori, and Hakuba in the first place

"Okay, now that we know it's you, we want you to also coordinate with us from time to time"

"Understood, the old meeting place?"

"No the Kudo house is more secure, besides no one but the four of us currently know about that place and know that it's safe to meet without crows hearing us"

"And in any case that might not actually be the case this time around, at least not yet"

"Kudo has a point actually, after all we only knew it was safe from crows once we were nearing the end of the fight originally"

"Got it"

"By the way, the four of us need a unique challenge/response code until the time is right, after all, who knows what trouble you guys will get into"

"Back at you KID"

"I'm not KID anymore, at least not until we get caught up if even then, as such call me by my new name"

"Very well..Asakura"

"In the meantime we should split up, being seen together too frequently..."

"No kidding, I'm watched extremely carefully as it is"

"Bourbon..."

"Hey don't blame me Akai, they know we met on the roof when Scotch was killed and since Scotch and I joined at the same time..."

"Oh they'll think you don't believe my death, plus your mission means..."

"Exactly"

"Understood, just remember what I said about Jodie and to a certain extent Camel as well"

"I'll remember"

"Also, here's my number just in case, but of course..."

"Yeah, limited contact for safety reasons, there's a reason once Rye here was busted we had barely if any contact with each other, though we made sure that we knew the other was okay, I did that primarily through newspapers"

"Oh?"

"I set my computer to have a keyword so that whenever the FBI was mentioned I got news about that, I also discreetly checked your bank account occaisonally when the FBI hadn't been in the news recently"

"I see, as for me I always had to wait for your messages to me"

"Yeah...sorry it wasn't more even in regards to knowing how I was, but I did ensure after we came back to the past that if anything happened to me that you personally would be notified"

"And how did you cover that Furuya?"

"There are a couple of people who know that I'm undercover, I let them know that I met you during your time in the Black Organization undercover and that we each knew the other was a NOC and watched out for each other as best we could after Scotch's death"

"Oh, basically saying you wanted a fellow former NOC to know that one of their own has fallen but to keep up the fight"

"Exactly"

"That would do it, the FBI would have still come you know"

"Oh I know, but I had secret orders sealed in the case of my death that would have allowed you guys to act on your own and yet still be able to coordinate with the PSB at the same time"

"When did you manage that?"

"Hey guys, take it to the house"

The two look around and realize that they were still very much in the open, even if they were keeping their voices down and it was unlikely they would be overheard it was still pretty risky and as such they go back to the Kudo house. On the drive there Furuya thinks back to after Scotch had killed himself with Akai's gun due to mistakes on both sides, now then the reason he had to go back to Japan was because of a target staying there but Furuya had decided to make personal contact with the PSB as well and make certain arrangements in the form of orders, at least some of the arrangements were in the form of orders, other specific arrangements were more a request with very sound reasoning behind them

Past

Everyone was surprised to see Furuya, at least those that were in on the fact that he was undercover in a dangerous Organization, but they were also relieved to see him considering the fact that they'd just held a funeral for Morofushi Hiromitsu just days earlier and all were afraid that Furuya would be next

"Furuya, it's...it's good to see you"

"I'm sure it is"

"What are you doing here though?"

"I have things I need to do in Japan and decided to report in person, besides I also need to make a few arrangements"

"Arrangements?"

"Yes"

And so in private Furuya talks to his superior

"So Furuya, what exactly do you need to do?"

"I need to create sealed orders, these orders are not to be opened until confirmation of my death, I also need to talk to everyone who knows about my undercover job because I also have a request"

"Understood, you can have my office while creating these sealed orders...are you sure about creating these orders though? I mean there's a chance that these orders won't even be needed"

"Just a precaution boss" (thinks) "I know for a fact that these orders are needed since I know the future and that means I know that the FBI are going to be coming to Japan, might as well make things a little easier on them in the event of my death though, though my reasons behind these orders will be different in written form then from the true reason"

Two hours later and Furuya had finished writing down and sealing his orders and everyone in on the fact that Furuya was undercover in the Organization had met in a secure, soundproof room

"Okay Furuya what's this about?"

"A fellow Organization member"

"Oh?"

"Yes, I have a request, if...if something were to happen to me I need you to inform him of my death, to let him know that he's the last man standing"

"Furuya you're not making sense"

(Sighs) "I'm sorry, I guess what I just said doesn't make much sense without context, I have conclusive proof that Moroboshi Dai, known as Rye in the Black Organization is actually an undercover FBI agent known as Akai Shuichi, as such if I should die while undercover I want someoen to contact the FBI and to pass on a message to Akai Shuichi that a fellow NOC has fallen and that he's the last man standing against them with the knowledge to take them out" (thinks) "they don't need to know about Mizunashi Rena also known as Kir, a CIA agent who is also undercover thanks to her father sacrificing himself for the mission to keep his only daughter safe"

"You're basically saying that you want us to tell a fellow NOC that he's the only one left able to fight full force against them, to tell a comrade that they've lost one of their own, even if they work for someone else"

"Yes I do"

"What makes you think he'd do the same regarding you if he ever knew about you being a NOC?"

"It's not so much wondering if he'd do the same as much as the ability to do the same"

"What do you mean?"

"FBI missions from what I've read in the news are vastly different from the Organization mission he's been given, if he at any time is on a different FBI mission, for whatever reason he may not even have the ability to tell his fellow agents about his suspicions about me if he has any or have them pass on any messages to me because of the fact that I may still be undercover with the Organization and as such contact would be extremely dangerous and he knows that. As such I am not expecting him to afford the same courtesy to me for practical reasons"

"Oh, the fact that he doesn't know your true name would also be a hinderance wouldn't it?"

"Yes it would be"

"Wait...how did you find out his real name then?"

"I have my ways"

"Understood Furuya, we'll do our best to follow your wishes in the event of your death"

"Thanks, by the way boss, I have those sealed orders waiting for you on your desk"

"Understood, then under the specific requirements you have already given me those orders shall be sealed until met"

And with that Furuya leaves to complete his Organization job

Present