"I won the bet."

"No you didn't."

"Yes I did!"

"I was doing so well these last two weeks, I haven't flirted once!"

Naruto smiled slyly, "Oh really… Because according to Itachi-kun, you flirted with Kurenai just hours after making the bet."

Shisui's eyebrows twitched in anger, fucking Itachi, "I wasn't flirting… I was… uhh… paying her a well timed compliment."

"That's flirting you idiot."

The Uchiha waved his hand dismissively, "A minor slip up, I assure you. It doesn't mean that I lost the bet."

"If you flirted, you lost."

"We have two very different ideas about what it means to lose."

Naruto could feel herself turning red in anger, "YOU LOST! Pay up Shisui!"

The jonin stared in defiance, before the corners of his mouth turned up in an evil smile, "I'll concede to your victory… under one condition."

The blond student glared, before gritting her teeth and spitting out, "What?"

Shisui smiled, his eyes closing innocently in the process, "You have to refer to me as Shisui-kun."

"No."

"That's the only way."

"Oh, I'm sorry, perhaps I wasn't being clear. HELL NO."

"Welp, then you aren't getting your jutsu." The boy stated, flopping onto the couch.

"Will you please teach me a jutsu… Shisui-kun." She spat this vehemently, with obvious disdain. Yet it was enough.

"Perfect! Let's go to the training field, there's a long day ahead of us!"

Naruto was beaming, practically sprinting towards the field with an amused Uchiha strolling behind her. The older ninja was chuckling as he followed the young girl, she was a surprising addition to his life. He never saw her coming, never even imagined the weird friendship that could develop between them. Yet here they were; and frankly Shisui wouldn't trade it for anything.

"So what are you going to teach me sensei?" Naruto asked with a grin.

Shisui chuckled, "Well it all depends on what your elemental affinity is."

Naruto hopped on the balls of her feet, her head tilted to the side in adorable confusion, "What's an elemental affinity?"

Shisui's smile grew, "It's the element that your body finds easier to manipulate. Everybody has at least one affinity. Some lucky ninja get two. Even fewer, extremely rare ninjas get three."

Naruto stared at her roommate in irritation, "Oh please allow me to guess. You just happen to be one of the ninjas that have three?"

Shisui grinned, "Yup! What can I say, Kami loves me."

Naruto rolled her eyes at the boy. Despite her apparent sarcastic remarks, she truly was astonished by how amazing Shisui was. Not only was he the youngest veteran of the Third Shinobi War, but he had so many more talents that backed up his prowess. Which was why she was unsurprised by the fact that he had three elemental affinities, when everybody else in the world had only one.

"So wait, would I be able to use other elements that aren't my affinity?"

"Yes you would, but they would be much harder to control. For example, say your affinity is fire. Any jutsu that requires fire would be much easier for you to learn and use, then say its opposite element, water. That's why it's always smarter to start leaning jutsus that align with your affinity." Shisui calmly explained.

"Ok, so what are your affinities?"

"Fire, wind and lightning. Hopefully your affinity is one of those three."

"But don't you have the sharingan? You probably know hundreds of jutsu."

"You're not wrong. Because of my position during the war, I was able to copy many different types of jutsu. And truthfully, I'm able to use every elemental type. However it would be a lot easier to teach you if you happened to have the same affinity as me, since it comes a lot easier and I would be able to relate with any specific struggles."

"Awesome! How do we find out what my affinity is? OH oh oh! I bet its something cool like going on a spiritual journey through a frozen tundra! Or fighting a giant raccoon who holds all of the mystical answers!"

Shisui calmly took out a small piece of paper from his pocket, "Channel your chakra into this."

Raising an eyebrow in confusion, Naruto did what she was told, only to drop the paper in surprise when she sees it being cut in half.

"Congratulations Naru-chan, you're a wind affinity like me! Wind actually happens to be the least common affinity in the Land of Fire, and perhaps the most malleable." Shisui announced.

"What do you mean by malleable?"

"As in you can use it in many different ways," Shisui explained, "You can channel your chakra into a knife in order to cut deeper, like Asuma does. Or make a great big gust of wind to push your enemies away. You can also combine it with other elements in order to make them stronger, such as fire techniques."

With each word, Naruto was getting more and more excited, practically hoping in unrestrained joy, "So what are you going to teach me!?"

Shisui smiled innocently, "Today, my dear pupil, you are going to learn how to cut a leaf."

Silence.

"WHAT?!"

Cutting a leaf, Naruto learned, was a lot harder than she assumed. It was so hard, in fact, that Shisui had to stop her and take her back several steps.

"Your chakra control is atrocious," He remarked, "You have to improve it before you can even begin to think of elemental manipulation."

So that was when she got stuck with tree walking. Also a lot harder than she assumed. Everytime she went up a step, she got blasted right off. It was down right degrading. Her eyebrow was twitching in irritation, Shisui's laughter as he lounged on top of the tree behind her was not helping. She was wondering whether it was possible to temporarily change her affinity to fire; after all, she would like nothing better than to set both this irritating tree, and her even more irritating roommate, on fire.

"Uh… Shisui? What is it that I'm doing wrong exactly?"

"Oh I'm sorry, I can't hear anything. Did you say something?" Shisui asked sarcastically.

"Ugh fine. Oh great and wise Shisui-kun, help me… please." She spat out vehemently.

Shisui grinned, Kami above he loved irritating this girl, "Well Naru-chan, you're putting too much chakra into it. You have… well an enormous amount of chakra. Your control sucks because of it. The tree walking exercise helps you learn how to control it. Put too much chakra into your feet and you get blasted off. Too little, and you won't stick. The easiest way is to start off running. Empty your mind Naru-chan, let your instincts guide you."

"Hey Sasuke." Naruto whispered to the boy seated next to her. She had spent the entirety of the previous day trying to learn how to climb the damn tree, and she was only a quarter of the way up. She was starting to believe that this entire so-called "exercise" was made up by Shisui for some type of twisted and sick amusement.

"What Dobe?" He whispered back, his eyes not straying from Iruka-sensei.

"Do you think Shisui misses the ANBU?" Naruto asked quietly. It's no secret that Shisui is recently retired from the ANBU forces, he is after all, nationally recognized for being the youngest ninja to ever make Captain.

Sasuke turned his inquisitive gaze onto the blond, "What brought this on?"

Naruto wrung her fingers nervously, "It's just that, well, I noticed Itachi-kun going on all these cool secretive missions, while Shisui is stuck staying home. You know how much he loves all that excitement, and it can't be easy to see your best friend going on all of the missions that you can't anymore."

Sasuke sighed, "Naruto, Shisui is still injured from his last mission. He's still not medically cleared for active duty yet."

"I know, but it's still not the same as ANBU."

"Did you know that most ANBU soldiers only stay in the forces for five years? Five years maximum, I mean. After that, it really starts to deteriorate your mental state. Shisui was active for eight whole years before the Hokage had to step in and retire his mask." Sasuke explained.

"Shisui was an ANBU for eight years?" She said incredulously. Woah. No wonder her roommate was all messed up in the head.

Sasuke nodded, "There's a reason every ninja around respects him so much, despite the fact that he's only fifteen."

"That's insane. Do you know what sector he was stationed under?" Naruto asked. In the ANBU, there were a plethora of squads and sectors one could fall under. A known example would be the Torture and Interrogation Unit.

Sasuke shook his head, "It's classified. But I have my own theories."

"Which are?" Naruto prompted.

"Personally? I think Shisui was a member of the Assassination Unit."

"WHAT?!"

"Naruto and Sasuke! Detention! AGAIN!" Iruka cried.

Sasuke shot a glare at the blond, while Naruto just slammed her head on the table, "Oh fucking hell."

A week passed in relative peace. Naruto had finally, finally, learned how to climb the damned tree. She celebrated by bursting into her apartment with a smile and an arm full of ramen.

"Dear Shisui-kun, I've done it! I have conquered the fucking tree from hell!" She exclaimed happily.

Shisui, who was lounging on the couch with a folder full of papers, looked up in surprise, "I'm glad to hear that Naru-chan."

Naruto halted her actions. Dropping all the ramen onto the counter, she marched up to the elite jonin, "Ok what's up?"

Shisui raised a brow, "What do you mean?"

"By now you should be giving me one of your annoyingly boyish grins, with your eyes twinkling in happiness. Your eyes aren't twinkling, and I can't even see your dimples with that pathetic smile. So, what's wrong?"

Shisui sighed, he really was spending way too much time with the young girl, "I've been medically cleared for active duty. My first mission back starts tomorrow."

Naruto's eyes widened. Nervously, she asked, "When… uh, how long is the mission?"

"Two months."

"That long! But you just got back from a five-month long mission!" She exclaimed.

"Naruto, trust me when I say I'm not saying this to sound narcissistic, but I'm one of the best jonin there is. More importantly, I'm a skilled jonin who's actually good at undercover work, unlike the rest of my peers. So yeah, I'm usually needed for long term undercover missions. Because if I don't do them, well, there aren't many other choices the Hokage can send out." The Uchiha explained.

Naruto shuffled her feet, her eyes staring firmly on the ground, "I've gotten used to you here."

Shisui grinned, ruffling the younger girls hair in the process, "I'll miss you too Naru-chan. Just think of it like this, these two months that I'm away will give you plenty of time to master water walking!"

Naruto stared at the boy in confusion, "What the fuck is water walking?