Disclaimer: If I own Naruto, there will be SasuNaru NC-17 yaoi in every page. I'm just obsessed enough to write my own fanfic. Naruto however, belong to the wonderful Masashi Kishimoto-sensei and many more. I also claim no ownership over Harry Potter and related characters. God knows what will happen if I ever did.

This fanfic is supposedly a spin-off fic from Harbringer Lady's Shinobi Guards. However, even though you will do just fine without reading it first, it'll be much easier to understand if you read it first.

All my gratitude for my betas and proof-reader, both Vespertine and Granny-baachan! You guys are the best partner-in-crime and betas I've ever met!

This is the revised edition.

Property of Sheera's Greywolf 2005

Ying & Yang

Hitomi no Jyuunin

(Dweller of the eyes)

When Sasuke received the order from Tsunade Hokage-sama a few weeks ago, he never suspected that Britain and the idea of entering a witchcraft and wizardry school would be a horrendous one. Oh no, he wasn't complaining about their protected; after all Harry Potter was a good boy, no matter how twisted both his past was and fate is. Nor was he complaining about the supposed-villain of the whole ordeal. After all, his job had been defined already; to protect Harry Potter, not to meddle in wizard's politics. His job was defined, paid and would be executed in a manner of excellence as expected from a member of Uchiha Clan who had killed both Orochimaru and Uchiha Itachi. No, he wasn't worried about it at all.

In fact, the one who succeeded in putting extra frowns and creases on his forehead was none other than Uzumaki Naruto.

Sasuke had long admitted to himself that his feelings to a certain obnoxious and loud blonde-haired ninja had gone beyond normal friendship. But at which stage the blonde idiot stood; Uchiha Sasuke, Konoha genius prodigy and the sole survivor of Uchiha massacre; honestly didn't have a clue. And what puzzled him even more was Naruto's own treatment and attitude towards him. When Sasuke came back and regained Tsunade's trust; almost all of his comrades who knew the real reason behind his betrayal had put a distance, even Sakura; who at the time he came back had been engaged to Lee. Only the dobe remained indifferent. He was acting as if Sasuke never went to the 'snake bastard', as if Sasuke never tried to kill him, as if the battle on the valley and the meadow never happened.

As if Sasuke never had been gone.

It pained him and at the same time relieved him. Pained him because he knew Naruto had chosen to suffer alone, no matter how much Sasuke's words had hurt him. Relieved him because there was something that remained, something the Uchiha could hold onto, no matter how selfish it might seem. Yet, he didn't want Naruto's sufferings stayed hidden in the dark. The Uchiha would prefer a shout, a fight, a punch; everything; anything except those fake sunshine smiles that greeted him everyday. Because no matter how good the blonde mask was, the shinobi had seen how it wavered a second after its caste and oh, how he craved the real one!

Because to him, Naruto was precious. The blonde-idiot had created a stage of which he stood alone in Sasuke's heart. And at some point the idiot had even managed to change Sasuke's reason when he was face to face with Itachi. But only now Sasuke realized that at that time, he no longer fought to avenge his clan. To say this current predicament and revelation didn't confuse him would be a lie on his part.

He silently cursed his lack of social skill, something he had never bothered to learn in his youth. Not that he had a choice; Orochimaru, after all, wasn't the best teacher of social skills.

So now, he simply didn't know why he was so in rage after witnessing some girls; obviously from upper level, or perhaps from different dorm too; gave Naruto various Valentine gifts of which the blonde had accepted with a shy and grateful smile. A small voice in his head said that perhaps, perhaps, the infamous Konoha Ice Prince was jealous. Jealous that Naruto had shown a side he never knew to a couple of complete strangers instead of him who's supposed to be his best friend.

But you had betrayed him once, almost killed him twice even, how could you be so sure that he still thinks of you as a best friend?

No, he wasn't jealous. Uchiha Sasuke isn't jealous.

If so, then what had made him so mad, he was seeing red? Not to mention that his attitude was even worse after the incident? Even Naruto who had known him the longest and thus known almost all his quirks had lost patience and told him to stop acting like a spoiled brat and grow up. Sasuke simply stormed out from Gryffindor Common Room, regardless of how much he looked like a spoiled brat at that point.

And that was how he found himself sitting in one of the Astronomy Tower 's parapets, trying desperately to assess his feeling.

Trying, that is.

But Fate hates him for some reason.

Before he could delve deeper into his mind, his ninja sense shouted at him to be cautious, someone was coming. At first he hoped it would be Naruto chasing him all the way up to the tower, but his hope dimmed down when he realized the steps missed a certain sound that only the dobe owned. He, however, quickly recognized the unruly mop of black hair.

It was none other than Harry Potter.

Hermione Granger once said that she found both Sasuke's hair and Harry's a similar shade black. It was, she had tried to described, the kind of night black when no stars where out to shine. It was the kind of deep, purest black that only shone in the middle of summer, right when the sun was all out in her almighty glory. Sasuke was taken aback at the comment, thinking that it was the same shade of black Itachi's hair was. He quickly dismissed the idea, but it still plagued him for a few minutes, until Naruto spoke...

"I like it Sasuke-teme! I think it's better than that black-blue, it looked like bruises!"

"Hi, Sasuke-san 1... Umm I didn't expect to find you here..." The Boy-who-lived stammered visibly under Sasuke's blank stare. Naruto and his comrades in Konoha had been immune to Sasuke's glare, however it still has it desired effects here in Britain. Something that Sasuke was grateful, for it was his weapon to fend off Fan girls (and boys alike) without creating unnecessary blood bath.

A plain 'Hnn' used mainly for simple acknowledgement was the only answer Harry get from the dark-haired Uchiha. But Harry, being a Harry Potter, refused to give up. Instead, he steeled himself from whatever outcome of this so-called 'friendly conversation'.

"The stars are all out tonight, I heard Prof. Sinistra said. You never told me you had an interest in astronomy.' Well, another try wouldn't bite, would it? At least, he hoped so.

" Hnn." Apparently it was.

Harry sighed dejectedly, this thing could go all night and it was all he could ever squeeze out from The Uchiha. But no matter how Harry was thankful that his life remain intact, in Quiddith it was the time for direct approach.

"Why you were so upset before Sasuke-san? What's up with you and Naruto? I think there was nothing wrong about Naruto receiving some Valentines." The question was voiced in curiosity and a little bit desperation, Sasuke noted. Undoubtedly, some of those questions didn't originally come from Harry; Hermione perhaps, was the one who were so curious about his relationship with Naruto. Shikamaru was right when he said that the majority of the female populations are troublesome.

Sasuke sighed dejectedly, "There is nothing wrong or happening between me and Naruto." He said with an air of finality and continued to stare at the Forbidden Forrest below. Somehow indicating that the so-called-conversation was over, and if Harry didn't want to get roasted by Uchiha's famous Katon no Jutsu in the near future he better leave without so much as a fuss.

He soon learnt that Harry could be stubborn as a brick when he wanted too. That or he was just too stupid to realize that the Uchiha was literally a time bomb.

"But you looked so mad earlier, and it made Naruto upset too. I know whatever happened between you two is your business, but could you please talk to him again? "Harry blurted out hurriedly and visibly wilted under Sasuke's intensified glare. He saw the genius' jaws clench tightly as the dark-haired shinobi fought to remain calm. 'The calm before storm' Harry mused to himself and willed his body to stay still and not run from the upcoming danger called 'Uchiha Sasuke in battle mode'. He heard a soft 'tap' and knew that the Uchiha had jumped from his previous perch on the parapet and walked in calm, brisk steps towards him.

"Please stop meddling in other's business, Potter-san." Sasuke murmured dangerously in passing. The usage of his surname made Harry wince and shivered mentally. During Sasuke and Naruto's stays in Hogwarts during the past month, the uptight Uchiha had opened up a bit and had called Harry using his given name; something Naruto had called a great achievement. The reversed usage of name must be an indication that the Uchiha was majorly pissed off. Harry could almost picture thaose weird red eyes (what was it called again?) of his swirling dangerously.

Sasuke left without another word.

"Oe Sasuke-teme! Where are you heading?" The blonde-haired ninja immediately ran to catch up when he spotted his raven-haired teammate. Even after Sasuke's betrayal to Sound and Team 7 official dispersal by Tsunade, he never thought about Sasuke less than a teammate. Sure, Naruto wasn't a saint; a monster perhaps; but not a saint. Sometimes, during sleepless nights in his journey with Ero-sennin; when he was too tired to think; the nightmare, the one with Sasuke, swirling Sharin'gans and devilish laughs, came unbidden. And it still haunted him here in Hogwarts, thousands of miles away from Konohagakure.

Sasuke merely shrugged at the question, but slowed down to let his companion catch up with his brisk step.

"Hey bastard, you okay?" The blonde-haired chuunin asked worriedly when he didn't received the usual 'Hn' the Uchiha usually used as an answer. He silently glanced at the taller chuunin and saw the troubled look etched visibly on his features, even in his body language. Being his best friend, not to mention rival, for years, Naruto knew this blatant display of emotion didn't bid a good thing. Sasuke's betrayal was a good example.

'If only I had known earlier...'

/'Stop thinking about it kit. He made that choice; you have done your best to stop it. Now stop that thought! I'm trying to sleep here brat!'/

'Whatever you said old fox...'

Naruto shook his head and pushed the thoughts away. Kyuubi was right, Sasuke had returned and it was all that mattered today. He will handle the issue with Kyuubi later. Now, back to present.

"Sasuke, look... Sasuke!" He called louder and waited until the raven-haired chuunin averted his gaze at the blonde. There was no trace of the emotion earlier, only a calm acceptance and a slight bit of annoyance.

"Sasuke, I'm sorry." The number one prankster of Konoha stammered, his whiskered cheeks turned pink in unusual shyness. "I don't know what has gotten into you today, but I'm sorry I shouted at you and…" He stuttered, unable to finish what he had began. Sasuke stared in disbelief at the mop of sunshine-kissed threads hung silently, covering the sea-blue eyes, one thing that Sasuke worshipped enough he would built a shrine for it even if he was using the last of Uchiha's forte, from Sasuke's own piercing coal-dark ones.

Sasuke didn't like it; never did in his life had he imagined he would die by this attack, watching his best friend/teammate/secret crush apologizing. This person in front of him certainly wasn't his teammate! Uzumaki Naruto doesn't apologize; especially to Uchiha Sasuke, the only one who pet-named him 'Dobe' on a daily basis. He might apologize to Tsunade, or Sakura or even Jiraiya; but never to Uchiha Sasuke. Who was this imposter and what had he done to the real Naruto?

"Naruto" Sasuke cut the tirade and grasped the blonde's chin; lifting it slowly so he could stare straight into clear blue eyes which reminded him so much of Konoha's sky at summer. "Don't apologize. " Sasuke said firmly into a set of unnatural shade of blue; it always tried to pull him into its depth no matter how he struggled not to fall. "Don't apologize when it isn't your fault to begin with. I'm just having a bad mood." The raven-haired shinobi said, effectively ending the conversation right there. He slowly released the blonde's chin, but somehow instead of releasing the blonde altogether, the said hand just moved silently to the whiskered cheek; ghosting over it in the barest of touches.

He saw his blonde-haired companion eye fluttered close as Naruto unconsciously leaned into his much larger hand as if trusting him enough to let Sasuke do whatever the Uchiha please. And oh, how those pink lips glistened enticingly as if beckoning Sasuke's own lips to, please come, and have a taste.

Never once did the half-opened blue eyes left his own coal ones, regarding him with nothing more than a daring question: What will you do Sasuke? But did nothing to stop Sasuke lips to advancing closer, and closer...

...and closer...

Sasuke steeled himself and his mind on the last moment from over drive and ruining everything he had with Naruto. He would not let his stupidity cause his downfall. He was after all, a shinobi, the last descendant of Uchiha Clan, Sharin'gan bearer and top and foremost Uzumaki Naruto's best friend and rival. It was a blessing that Naruto still welcomed him with open-arms after what he had said and done to the blonde.

He watched the blue eyes blinked in confusion at the loss of the warmth. Sasuke slowly shoved both of his hands to the many pockets of his robe; and started to walk. He muttered a quick 'Come on' but didn't wait for the blonde to catch up with his long strides.

"Sasuke, I—"Naruto began before a voice they both recognized Harry's voice calling their names from afar. The boy probably had jogged after he had woken up from his post-Sasuke-death–glare stupor, immediately latched to their side and effectively ruining Sasuke's abused mood.

And he was this close from kissing Naruto.

Naruto watched in dismay as he witnessed Sasuke donned his usual mask of emotional indifference, again to the Uchiha Sasuke the world knew and Naruto secretly detest. During his stay at Hogwarts, Naruto realized that the usually stoic boy had begun to open up bit by bit. On one occasion he even caught the entitled Konoha Ice Prince laughed uncontrollably.

It was nice to see Sasuke look relaxed for once; in Sasuke's way.

"Say Naruto, what will you do to those valentines?" Harry's voice drifted and forced him to revert his eyes from Sasuke's face. He turned his face and for a brief moment he thought he saw something akin to awareness in the boy-who-lived's leaf-green eyes. Naruto grinned his biggest smile at Harry.

He had to remember that Harry was amazingly perceptive.

"Well, eat it up of course! And I won't share it with you Harry!" The Kyuubi vessel answered cheerily with a grin that threatened to eat half of his face. Beside him, Sasuke snorted.

"I don't need your chocolate, dobe." Sasuke smirked smugly and watched in amusement as Naruto pouted and started yelling at him with obscenities prohibited for minors. Somehow, he always found it comfortable to be engaged in this kind of friendly banter. It made him forget how lonely he was.

'Ne Sasuke, what would you do with your presents? You don't like sweet things do you? Can I eat it? Ne ne ne?"

Sasuke risked a glance at the blonde-idiot and felt his resolution crumble. The twin Konoha summer-sky widened and there a glint of hope shining in those pools of baby blue; somehow making the dobe look cute; adding sun-kissed threads falling delicately over the said eye and his hands just itched to brush it off, burrowing his hand into the blonde tresses. He almost felt its softness at the tip—

"Do whatever you like with it. I don't care." Sasuke said coldly and stared ahead, aware of a set of knowing green eyes watching his struggles. His hands gripped the inside of his pocket tightly; trying desperately to remain in control. At that point Uchiha Sasuke no longer care of what Harry might guess.

Gryffindor Common Room was less crowded when they returned; only several of 7th years huddled up together in front of the fireplace, discussing something Naruto didn't bother to know. Hogwarts, the Headmaster had announced earlier, was experiencing the worst winter in an hundred years; not only was it cold, but Naruto heightened sense could detect a blizzard advancing. Naruto sighed, so much for a clear night.

"How is he?" Sasuke said quietly after they waved Harry good night and watched the boy-who-lived disappeared into his own bed chamber before heading to the stairs and proceeding into their own. Hogwarts was a safe ground, so they didn't feel the need to stay at the same room as their protected. Beside it wasn't as if Harry's room could accommodate two more people and their respective belongings. A Ninja is required to be able to travel light, but such rule wasn't meant for Naruto.

"He?"

"Kyuubi."

"Oh, he's fine. Just being a usual grouchy old fox." Naruto shrugged upon entering their shared bedroom, "Nothing to worry about that old fox, he's not really that active in this time of the year. Beside, he isn't as bad as you think Sasuke." Naruto grinned and undo the clasp of his robe, carelessly throwing the garment away to the chaos called his side of the room.

He heard Sasuke sigh and glanced disdainfully at The Uchiha much, much neater part of the room. "How could you be so neat Sasuke? It's not even healthy!" He scrunched his nose at the said Uchiha as he watched the raven-haired shinobi undid his own robe and folded it neatly.

"Speak for yourself dobe. At this rate you'll be dead suffocated in your own trash before you are even promoted into Hokage office."

"Ah! So you finally admit that I, the great Uzumaki Naruto, will become the Rokudaime!" The blonde-haired ninja said cheerfully.

"Which is impossible, you'll be dead even before you get promoted. So what's the point? " Sasuke rolled his eyes heavenward, "Kami, what have I done in my past that you hate me enough to partner me with an idiot." He sighed, loud enough to the blonde to hear it from his stand point across the room.

Naruto merely stuck his tongue out. Sasuke had called him idiot back from their early childhood; as annoying as it sounded, he was used to it by now, so much it had became a pet-name and no longer had its effect unless it was spoken in different tone. Beside, he secretly kind of liked the pet-name.

"Naruto, have you done you're homework? In case you forgot, we have 3 to submit tomorrow, and I'm not planning to help you if you rush out in the morning. "He called across his shoulder as the Kyuubi vessel slammed the bathroom door closed and starting his nightly routines.

" Yep! Ron helped, and Hermione let me copy her work for the last paragraph! She said it wasn't my faults1 if I understand nothing." Naruto yelled with a muffled voice from the bathroom. The Kyuubi vessel must be spitting toothpaste all over the bathroom while doing so, Sasuke mused. Well, as long as he wasn't in the receiving end and the bathroom was already cleaned on his turn.

"Yosh! All set!" Naruto joyfully emerged from the bathroom, wearing nothing but a pair of lounge pants that ride oh so low on his lean hips, endlessly teasing Sasuke already over-drive mind.

"Dobe, a storm is advancing. Don't tell me you're going to sleep in just that. "Sasuke narrowed his eyes at the expanse of tan torso. The room was well-heated, the Uchiha admitted, but wearing a lounge pants and nothing else in the middle of winter with a promising blizzard on the way, was suicidal. Not to mention Naruto was well-built enough to be edible and his disobedient mind didn't help him much; in fact it just grew more devilish by providing him with mental images not suitable for minors. He didn't want losing sleep again tonight.

"Of course not bastard! What am I? Stupid? "

Sasuke sighed and closed the bathroom, happy to found that the bathroom was indeed, clean.

Contrary to popular beliefs, Naruto was quiet whenever he was deep under covers, but whether he was asleep or not was another matter entirely. And somehow, tonight sleep wouldn't come as easy as usual for the Kyuubi vessel. He usually has two reasons as to why, a matter concerning Kyuubi or non-Kyuubi. Tonight was the latter.

"Dobe, go to sleep." Sasuke murmured sleepily, turned his stare from the 4 posters bed- ceiling to his quiet but wide awake teammate, who was merely six-feet but seemed like miles away from him, and found a set of twin blue eyes staring straight at him.

"...Sasuke..." 'What are you thinking? What was happening down there? Is something wrong? '

'What's happening between us?'

Yet the questions remained unasked and unanswered along with many uncertainties in the air.

Sasuke gazed him steadily. Waiting.

"...no, it's nothing. Nightie night." And the blonde pulled the thick burgundy veil, obscuring him from Sasuke questioning stare.

Sasuke stared blankly for a couple of seconds before he too pulled his own veil.

...tsuzuku...

Songs listened while writing this:

Melissa – Porno Graffiti, FMA 1st OP

Jyojoushi – L 'Arc-en-Ciel

Kanashimi wo Yasashisa ni – Little by little, Naruto 3rd OP

Killing Me – L 'Arc-en-Ciel

... and many more...

Note(s) :

1 For this please read Shinobi Guards chap. 3. I think HarbringerLady had given enough explanation regarding this matter, but if you have anything, comment or whatever, please email me. It's my idea after all.

Saa it's done, the 1st chapter of Yin & Yang! I hope it's up for your satisfactory, I know it's not my masterpiece. Damn, I hadn't realized writing after 6 years absence is this difficult! I need a whole week to finish this thing! Damn my moody self sigh.

Anyhow, any comment, review, constructive criticisms are welcome, after all they're what make me keep on working.

sHeeRa+

June 16, 2005