Disclaimer: I do not own either works, they belong to their respective creators, publishers, and companies. My only profit from writing this is experience in writing and editing.

Full Summary: The Elemental Lands stayed out of the rest of the world's problems, but they still kept tabs lest those problems end up affecting their hidden world. At age 18 Kakashi was sent on a mission to analyze a potential threat in Magical London. Twelve years have passed since he returned the Elemental Lands and with the War over he has time to think about his stay in "London, England." It is finally time for him to gain some closure.

A/N: Slightly inspired by some of the other cross-overs on here, but I think I took it to a new place. Please enjoy ~ with much love, Depressedchildren Edited 2/19/17 for grammar and 700 compliance

Prologue

Naruto landed on the windowsill with ease and called into the dim apartment, "Sensei?" Silence met his question. With his brow furrowed, the blonde entered the apartment cautiously. "Sensei?" he called again once in the middle of the living area.

"Hmm?"

Naruto could barely hear his sensei's hum. Naruto began walking toward what appeared to be the bedroom door, which opened while he was still walking toward it. "Oh Naruto," his sensei greeted. The words were oddly distracted, and his lazy cobalt eyes barely looked at him. It was still weird to see him with that new synthetic eye; Naruto kept expecting it to turn into a sharingan.

"Uh…Sensei?" Naruto began as he gave a nervous chuckle. He fixed the silver haired man with a concerned look. "You okay?" he asked before he took a few cautious steps toward the older man.

"Hmmm?" Sensei voiced distractedly. He seemed to realize that Naruto was still there, and he blinked a few times. "Oh I'm fine," he replied, but the distracted quality to his voice made the blonde purse his lips and squint his eyes at the man—as if these gestures would give him the answers he wanted about his former sensei.

"What's up with you?" Naruto asked. His expression was relaxed, but concern still managed to find its way onto his face. "You've never been…" the blonde trialed off as he scrunched up his nose and tried to find the right word. "Sensei you seem really preoccupied." Naruto mentally cheered at his final wording.

"What would I have to be preoccupied with?" Kakashi asked as he casually closed his bedroom door behind him and moved into the living room. To Naruto, he moved too casually, but the blonde schooled his features to make sure his suspicion would not be perceived by the silver haired man.

Kakashi was now leaning against the wall in front of Naruto. His arms were crossed over his chest and one hand was already reaching for his Icha Icha book.

"I don't know," Naruto shrugged in reply and leaned against the wall as well. "Tsunade-obaa-chan is thinking of making you Hokage?"

So far his sensei seemed to be acting like himself again, which was good Naruot supposed.

Naruto knew it was hard on Kakashi when they found out Madara was really the presumed dead Obito, but he always imagined it was a lot worse than any of them thought. Yeah, everything reconciled itself but things were still messed up for a while there. Naruto could imagine his teacher was blaming himself for the war, because if he had valued teamwork then Obito wouldn't have been crushed and then he wouldn't have become Madara and Kaguya's puppet—or some ridiculous nonsense like that.

Naruto just hoped Kakashi wasn't falling into depression, what with the war finally over, things should be better. Plus, Kaka-sensei was being nominated for Hokage, and that had to be exciting. The ghosts from his teacher's past had been put to rest, and the man seemed to have reconciled with everything that happened, but Naruto wasn't so sure anymore.

"Anyways, Sakura and I are going to go visit Sasuke, d'you wanna join us?" Naruto asked what he had come to see his teacher for.

"Mah, I think I'll head to the memorial stone, then catch up with you two," Kakashi stated before he body flickered away.

Naruto tried to sense for his teacher in the nearby buildings but felt nothing. With narrowed eyes, Naruto tiptoed toward the bedroom door and hesitantly opened it. No wires or traps met him, so he stepped warily into the room. Nothing… Frowning, Naruto was concerned that he hadn't been put into some horrific trap.

Still, the blonde's eyes scanned the room quickly for something—anything that would explain why his teacher had been acting so strangely.

There was a neat pile of clothes in one corner, a few weapons lay about the bed and a whet stone was in their midst. He could still see the impression Kakashi had made on his bed, so the jounin had been sitting there before Naruto came. It almost looked like he was just sitting on his bed sharpening his weapons, but why would he do that in his bedroom.

Carefully, Naruto made his way to the bed and sat down where his teacher had been sitting. He expected a trap to spring once he was a foot away from the bed, but nothing happened. Once Naruto sat down, he looked around the room for some answer to the question nagging him.

Slowly his gaze moved from the dresser, which had a photo of Team Minato and Team 7, to the bedside table. Naruto's brow furrowed at the lone picture. He had never seen anyone in Konoha like that, nor did anyone in the Fourth Ninja War look the woman in that picture, but then that was a little presumptuous of him. Just because she hadn't been at any of the battle sites didn't mean she didn't exist.

The woman had red wavy locks, but it wasn't the same color as Garra's or his mother's hair. Her eyes were green and were framed by her dark eyelashes. Her nose was cute and pointed and her features were soft. She was smiling at the camera, while she held a wiry haired puppy close to her face so that they were both facing the camera. However, Naruto did not know what kind of dog the puppy was. He had never seen a puppy like that before, since dogs weren't that common in his experience and were seldom ever pets—for what else could that scrawny adorable thing be but a pet? The woman was really pretty and she looked really happy. But her features were not that of the Elemental Lands, or at least that's what his mind was trying to tell him.

A cough startled the blonde from his thoughts. His heart skipped a beat when he looked toward the door. He was dead, he was so dead!

"Ah-hahaha! Kakashi-sensei!" Naruto sputtered out. Shit! Naruto was already sheepishly rubbing at the back of his neck. He was itching to leave, and perhaps hide under a rock for a while.

"I can't decide what I'm more disappointed about," the man began dryly, and Naruto audibly gulped. "That you would breach my privacy or that you got caught." Naruto flinched at both remarks, but the latter somehow stung worse—perhaps because it was a slight at his skills as a ninja.

"Care to explain, Naruto-kun?" Kakashi asked. Naruto grimaced again while his former teacher leaned against the door jamb with his arms folded over his chest.

"Umm…" Naruto gave a nervous laugh, but his panic was clear by the rapid rising and falling of his chest. "I-I" he stuttered before swallowing thickly. Those cobalt eyes were hard as they stared at him. Naruto shot off the bed.

"Sensei, I'm sorry, but I was worried about you!" he exclaimed. Naruto had his hands in his former teacher's flak jacket. "Okay?!" Naruto shouted as he let go of the jacket and turned away from the man in exasperation.

"I'm entitled to worry, ya know! I mean with all the stuff with Obito and…" Naruto trailed off as he realized what he said. He had begun pacing when his words failed him. He looked at his teacher almost desperately.

Kakashi closed his eyes and exhaled, but it sounded almost like a laugh. Naruto tensed but relax when Kakashi looked back at him amused.

"I see…I suppose I would act the same, though I would make sure I wouldn't be caught," he half teased. Naruto heard the message and understood the pointed look Kakashi gave him. Naruto laughed sheepishly in response.

Kakashi sighed but moved to sit on his bed. "I will admit I was preoccupied, but not with what you'd think," Kakashi explained as he offered the young man a seat. Naruto sat down next his teacher. "For the last twelve years I have been on near constant missions to try and stop a future world war. Now that that war has come and gone, I can't help but think about the past."

Silence settled between them, and Naruto couldn't help but squirm a little. After a minute or so, Naruto spoke up, "That woman?" Naruto gestured toward the picture frame before continuing, "Was she in your past?"

The way his teacher's eyes softened, Naruto imagined the man was smiling under his mask. "Yes, I was about your age when I met her," he murmured. He was looking at the picture the whole time he spoke.

Naruto licked his lips and thought over his next words. "What happened?" he asked cautiously. He hoped he didn't take his teacher down any dark trains of thought.

"Like I said," the older man began as he pulled his gaze away from the picture and gave Naruto an eye-smile, "I had missions to do to prevent a war."

Naruto pulled back slightly with his face was scrunched up in confusion. She didn't die? Kakashi had just left?! "Then why don't you go back to her?!" he exclaimed. The blonde was up on his feet and was flailing his arms around him.

"Naruto," Kakashi said as he shook his head and dropped off the honorific. There was a slight laugh in his voice when he said the energetic man's name. He now stood before Naruto and spoke again, "It's not that easy." He clamped his hands down on the blonde's shoulders to calm him down.

"Why not?" Naruto asked. He had a fire in his eyes that screamed he would not back down.

"Because she's probably married," Kakashi explained tiredly. When Naruto opened his mouth to argue, Kakashi hurried on, "and she thinks I'm dead." Naruto's mouth fell shut and he sat down numbly. His brow was furrowed while he tried to work out what his teacher had just said.

"Why?" Naruto asked softly, and Kakashi sighed.

"It was an S-class mission for security purposes, but I was called home before it finished bcause of the reasons I've already stated. She was told I died so no questions would be asked about why I disappeared one day to never come back."

Naruto was staring down at the floor during the explanation and he continued to stare at the floor while processed what he had just learned. In his opinion, Kakashi deserved happiness, and Naruto could tell his former teacher really cared about that woman, even after so many years. She was alive, whereas so many of the people important to Kakashi were already dead, but that didn't even matter because she thought that he was dead. It was cruel.

"Naruto," the older man called his name, and the blonde shot his head up. He felt Kakashi's hands rest on his shoulders again; the weight was grounding and calmed Naruto down a little more. "Let it be. I moved on long ago."

Naruto's eyes narrowed as he looked straight into his former teacher's eyes. "No you didn't" he rebutted. "You drowned yourself in work. Kakashi-sensei, I'll talk to Tsunade-Baa-chan –"

"Naruto –"

"No! Listen to me, you can see her but she won't see you, ya know? Then you'll know she's happy or whatever and you can finally have some closure. Sensei, I can tell you care about that lady still," Naruto reasoned. He then watched as his former teacher sighed and shook his head.

"At least you're perceptive," Kakashi stated wryly, "even if you can't snoop around without getting caught."

"Hey!" Naruto huffed indignantly before his expression sobered and he stared intently at the silver haired man. "Kakashi-sensei, please?" he asked and the jounin sighed again.

"I'll go with you, but I doubt Hokage-sama will agree."

Naruto may have imagined the hope in his teacher's voice, hope that maybe he would be allowed to go. Well, as Tsunade's successors, surely either one of them could make this request a reality. After all, a Hokage candidate shouldn't be distracted by loose ends. Besides, this way Naruto's former instructor would finally have a chance to gain some closure.

…

Naruto could not stop pacing. What was taking so long in there? What were they talking about? He knew he had Tsunade, but now he wasn't so sure, what if she changed her mind? Maybe it would look bad for a Hokage candidate to leave suddenly? Shit. He hadn't been thinking about the consequences.

Naruto stopped his frantic pacing when he heard the click of the office door opening. Kakashi had his hands shoved into his pockets as usual, and his eyes were locked onto the floor. Naruto waited with baited breath for any indication of what went on after he was dismissed from the meeting. Kakashi ended up in front of his blonde former student.

Naruto caught Kakashi's eye and waited for him to speak. Unfortunately the man's eyes were unreadable.

"You'll be taking on a genin team in my place. Make sure they can snoop better than you—if they pass that is," Kakashi stated with a nod of the head before he disappeared in a swirl of leaves and smoke. Naruto blinked a few times before a smile took over his face.

With a triumphant laugh, he burst into the Hokage's office. "Tsunade-baa-chan, you let him go!?" he exclaimed before he began crushing the woman in his embrace. She laughed lightly at Naruto's exuberance.

"Of course, he's one of our best and if he's going to be distracted by loose-ends—"

Naruto pulled away from the hug to give the woman a hard stare which interrupted her. She rolled her eyes. "Alright, it also would help him psychologically," she confessed. Naruto chuckled and continued to hug the woman.

"Thanks Baa-chan" he mumbled against her shoulder. His voice was soft and filled with endearment. However, he pulled away and screwed up his face in confusion. "But what's this about me having a genin team?" he asked when he remembered what his former teacher had said before leaving.

"Sit down Naruto," Tsunade ordered in her business tone, and Naruto paled. He wasn't going to like this.

…

Kakashi rolled his shoulders as he neared the boundaries of their hidden world. The little boat he was manning would go through the barrier that kept out the rest of the world from their Elemental Lands. He would then only be an hour out from a country named "Japan" near a region called "Okinawa." Kakashi would then be transported by several mechanical objects called "airplanes" until he arrived in "London, England."

With a sigh, he tried to think about where he would start his search for Lily Evans, or was she Lily Potter now? Did she go back to that man?

Kakashi's frown grew when he began moving through the barrier. It felt like something heavy had slid over his body. It was an entirely unpleasant feeling.

He could still remember the first time he passed through the barrier. He had been sent on a mission to analyze a threat in Magical London. The Elemental Lands stayed out of the rest of the world's problems, but they still kept tabs lest those problems end up affecting their hidden world. They usually learned of these threats by intercepting mail and newspapers flying around their world, as well as the occasional spy posted around the larger world. Kakashi would likely not be the only ninja from the Elemental Lands on such a mission as this, especially given the possible threat level.

Kakashi sighed and began changing his clothes to match the people of the larger world. He placed a slight illusion over his scar and hair. He supposed his clothes from his first time here would be outdated, but perhaps the suits would still be in style? He would know once he docked; well, more like hid the boat until he was to return. This trip would be a short stay unlike before.

The bay Kakashi pulled into was different from what he last remembered, but twelve years did that. He hefted his pack onto his back and went on his way. He had his passport still and had it updated before he left. It said he was a Japanese citizen, but birth place Vietnam. They had even gotten him a tourists visa for the United Kingdom, as per the current travel laws.

Before long, Kakashi would be handing over some lump of money, in a currency he did not understand, to be loaded onto a flying death trap. He just needed to remember it was worth it. It was worth it to see Lily again and know she was happy. Even if she did end up marrying Potter, Kakashi could make sure the other man was treating her right. If she married someone else…he'd make sure she was happy with that man too and let her leave his life for good. He would not dwell on her; he would move on. Maybe he would find someone in Konoha for him on his return; maybe he could have a family of his own with children he raised to be what they wanted to be. It was all worth it, just to see Lily Evans one last time.

TBC