Disclaimer: Neither the Harry Potter nor the Kuroko no Basuke universes belong to me.

Introduction: I am taking significant liberties with both the HP and KNB plots. For the purposes of this story, Dumbledore is still alive. Essentially, he sent Kuroko into the future in Japan to keep his plans for Harry in place, but he'll encounter Kuroko again in what would be Kuroko's third year at Hogwarts (so the KNB group are teenagers, ~13 years old, but Harry and his cohort have already had their battle with Voldemort and grown up).

Rating & Genre: T, Fantasy/Friendship. The rating might go up, but as currently intended, there will be some swearing, some non-graphic descriptions of violence, and some characterization that might not be appropriate for those under 13. Also…this might eventually turn into a romance fic. I haven't decided yet.

AN: Thanks to Sakura Lisel for catching my abysmal math skills. :) It's possible its still not right (really, they weren't lying when they said horrible things happen to [authors] that mess with time). Here's the approximate timeline: Kuroko is one year old when he is sent into the future 10 years, he then ages normally and this story is picking up right before Kuroko would enter Hogwarts as a third year student. So he's essentially 10 years younger than Harry.

The Mischief Kuroko Manages

Chapter 1

The aftermath of Lord Voldemort's defeat in Godric's Hollow would affect many lives, including, of course, one Harry James Potter. The infant had an interesting physical scar to memorialize the occasion, as well as the lasting emotional legacy of losing his parents. He would soon be known as The Boy Who Lived and become famous in the wizarding world for being the only person to survive the Avada Kedavra curse.

Albus Percival Wulfric Dumbledore, Headmaster of Hogwarts School of Witchcraft and Wizardry, stared down at the newly orphaned baby in his crib, who was sleeping and unaware of either the significance of the evening or of his own crucial role in events to come. He would have to go to his relatives of course, a muggle aunt and uncle in Surrey that had a young child of their own. Easily arranged, as they would have to fall in line with this matter, and Harry would acquire the protection invoked by Lily's sacrifice.

But it was this other child, a quiet infant with a startling shock of blue hair that matched his eyes, which gave Dumbledore pause. Lily and James had not told him they had visitors, and it was clear to Dumbledore that this child would also be a formidable wizard in his own right. Lord Voldemort had not noticed the child, an understandable result of his lack of presence, but Dumbledore was not blinded by the same myopic purpose that had lured the dark wizard to this place.

Dumbledore turned toward the child's parents, who were standing silently, completely shell shocked by what had transpired that night. "You cannot ever speak of this - that you or the boy were here tonight. You will not mention your connection to the Potters and certainly you will not tell your son he was an early playmate of Harry's. It will only endanger all of you if the Death Eaters learn of your existence."

They nodded their understanding, but then a calculating gleam entered Dumbledore's eyes.

"Forgive me, but I am afraid I cannot extend to you the courtesy of trusting your word. I will have to take…precautions. I will, unfortunately, need to make quite a few changes to your lives to ensure you cannot interfere in Harry's destiny. You will be sent to Japan, and he will grow up there in accordance with the Japanese Ministry of Magic's ordinances. And well, naturally you will have no memory of tonight's events."

And then, before they had a moment to even protest, Dumbledore began casting a complicated and truth be told, illegal, incantation. He was not only erasing their memories, he was changing their very identities to become Japanese nationals that had never visited England in their lives, let alone at such a pivotal time. For good measure, he'd also sent them a decade into the future, with enchantments designed to ensure they wouldn't be out of place.

If Dumbledore felt a momentary twinge of unease at the infant's unwavering blue gaze as the family disappeared in a swirl of silvery mist, he pushed it aside. He wasn't a complete monster, he'd arranged for the family to be comfortable in their new lives in Tokyo. And by sending them into the future…well, little Tetsuya would grow up hearing of the amazing exploits of Harry Potter's triumphant victory over Lord Voldemort. He would be free from the burden and worry of these dark times. Truly, Dumbledore was giving him a gift of sorts. And then Dumbledore's eyes twinkled, satisfied that the Kurokos would not pose a problem and that he could proceed with managing the life of the Boy Who Lived without further complications. Where was Hagrid by the way…they needed to get things moving…

And so Dumbledore pushed the Kuroko family from his mind, unaware that the brief contact with the Potters had still left a mark on the young blue haired wizard. He might never remember his encounter with Harry Potter, but Lily's selfless act had offered protection of another kind to the young child that was visiting her own precious son – Kuroko was enveloped in a shield that kept him safe from the corrosive effects of the type of hunger for power and fame that had possessed Lord Voldemort. It wouldn't be obvious for several years, but Kuroko was marked that night as well; he would always carry the value of friendship with him and it would shape him in ways they could not yet imagine.

And it was true, as Dumbledore had speculated, that the defeat of Lord Voldemort had relieved a burden for the wizarding world. Kuroko had no way of knowing that he might well have been one of Harry Potter's friends in that battle, if not for the actions of a certain meddlesome headmaster. Instead, he was occupied with different things once he entered Teiko Magical Academy and came to befriend, among others, five talented young wizards that would become known as the Kiseki no Sedai. It was here, when the cherry blossoms were in bloom that his story would truly begin.

It wouldn't be long after that day that Dumbledore would see Kuroko's name and recall the machinations he'd set in place. It would happen as he looked across his desk at the Japanese Minister of Magic and considered the proposal he'd just heard quite carefully. He could see several advantages, but he also suspected that many of his staff would kick up rather a lot of fuss over the whole thing. Ah, well, he'd gotten away with worse exploits over the years. And if he was successful, it would certainly further his own agendas.

"Minister Murakami, as you know, International Magical cooperation is one of my more cherished ideals and it is so important to foster this in the young of every country. Since the British Ministry for Magic is amenable, then I believe we here at Hogwarts would be happy to host the exchange students."

The Japanese official looked delighted and offered Dumbledore a courteous bow in response. "This is such good news. We will immediately forward their school records for your review, as of course you must feel free to evaluate them yourself." Minister Murakami used the floo connection in Dumbledore's office to request the documents be sent through and within moments a harried looking courier stepped through the green flames with several thick files in hand before quickly returning to his work.

The two wizards chatted a few more minutes, both content with the prospective plans. Dumbledore again assured Minister Murakami that Hogwarts was delighted by the opportunity and that he would do all he could to ensure their time there was comfortable and productive.

After Minister Murakami had taken his leave, Dumbledore smiled as he looked through the records. He tapped one file in particular…Kuroko Tetsuya…the would-be companion to the Boy Who Lived…sent along another path by his own capable hand. He did not believe in coincidences and the fact this boy was among the retinue selected for the exchange program was intriguing to say the least. Dumbledore was extremely interested indeed to see how the boy was progressing, and the others that would accompany him would certainly bear keeping an eye on as well. It looked like Hogwarts would have an exciting year in store for everyone. Which was all to the good really, things had been far too quiet since Harry had left. It was time to shake things up a bit and he had no doubts that these students would provide some much needed entertainment.