Let me properly re-introduce myself, I am Albus Dumbledore, Headmaster of Hogwarts School if Witchcraft and Wizardry. For all intents and purposes, I do hope that you remember me, although if you don't, I cannot blame you. The mind, afterall, is a sieve when you are as old as I am.
I wish that all is good for you and the others in Konoha. Did Tsunade and Dan get married? Did Jiraiya finish his book? Alas, I have many more questions that I wish I could know the answers to, but I cannot afford to waste parchment with such pleasantries. Know that I am a man of my word and would never break an agreement unless utterly pressured to do so. I must request your help in aiding me with a situation here.
Dark times are once again upon the wizarding world. To make an impossibly long story short, a dark wizard, by the name of Lord Voldemort (formerly Tom Marvolo Riddle, although he has also come to be known as You Know Who and He Who Shall Not Be Named) has returned to power. His quest, aside from domination of both the wizarding and the Muggle world is to kill a boy named Harry Potter. Harry Potter is the reason for Voldemort's fall from power fifteen years ago, but now that he is back, I cannot help but feel deeply terrified for his life as Voldemort will stop at nothing until he is dead.
Certain circumstances are preventing me from ensuring the boy's protection, so I must enlist your help. Harry is currently in his fifth year here at Hogwarts and will be for the entire year. I know that a year is a long time, but I only ask this of you because I have no one else to turn to. And of course, you will be well compensated for your time here as I know I am taking you away from your livelihood.
If you should choose to accept (and I daresay that I hope this very much), covers will be provided for you and your students. You have been an excellent teacher to your students and I know you will be an excellent teacher to mine.
Thank you for your consideration in my very unusual request and I hope to hear from you soon. There will be an owl waiting.
The letter trembled in Tsunade's fingers as she stared at it. 'How...?'
She stared at the owl sitting on her desk as if it would somehow give her some answers. But all it did was stare back at her with large eyes before it bent its head to pick at its feathers. She sighed before scooting back in her chair to open up one of her desk drawers. She rummaged around under some papers until she found what she was looking for. In a browning photograph, she saw herself, Orochimaru, Jiraiya and the Third Hokage standing with an oddly dressed, smiling bespectacled man. Oddly enough, the picture moved as she could see them posing for the camera before Tsunade made a face and everyone started laughing.
She shook her head and sat back in her seat. "Shizune!"
Her short haired assistant soon appeared in the doorway. "Yes, Hokage-sama?"
Tsunade sighed. "Has Kakashi been cleared yet for active duty?"
Shizune frowned. "Just this morning, Hokage-sama."
"Then get me Team Kakashi."
Naruto let out a really loud burp and then laughed to himself. He was lounging lazily on his bed in his pajamas as the sun poured in through the open window.
Naruto wondered why he hadn't attempted to be lazy before. He hadn't had any missions for a while and he was bored out of his mind in the village. Then, an amazing thought occurred to him. If you couldn't beat em, join em. Naruto stocked up on ramen and ice cream and now he was here after lying on his bed for three straight days. There were empty ramen cups and ice cream cartons scattered around along with open manga volumes.
Currently, he was watching a couple down the street in the middle of a really loud break up.
"Smack him again." Snickered Naruto when suddenly there was a pounding on his door.
"Naruto!? Open the door!"
Naruto jumped up. "Crap, Sakura-chan…"
He moved like lightning as he picked up all the trash and hurriedly shoved it under his bed as he heard Sakura open the door.
He ran out to greet her. "Hey…Sakura-chan…"
Sakura raised her nose at his disheveled appearance. "Why didn't you open the door?" She questioned as she walked farther into his apartment.
Naruto scratched the back of his head. "Bathroom."
"You've been avoiding me." She said.
Naruto shook his head too quickly. "Never, Sakura-chan, I've just been preoccupied."
Sakura raised her eyebrow. "Why do you smell?"
"That's the smell of my new shampoo." Naruto quickly countered.
As they walked into Naruto's bedroom, Naruto spotted a stray manga poking out from under his bed. He quickly started to panic. Sakura would kill him if she found out he was reading trashy manga and being a lazy smelly bum.
"Ugh!" Said Sakura waving her hand in front of her nose. "It reeks in here too!"
She sat down on his bed and put her head down as Naruto patted her back awkwardly
Suddenly, in one fluid motion, Sakura snatched the manga from under the bed and stood up, furiously shoved it in Naruto's face.
"What the hell is this?! What's going on here Naruto?!" Sakura yelled.
Sakura was about to hit him when a messenger ninja appeared in the window.
"Tsunade-sama needs to see you both now."
Naruto sighed. Saved by Tsunade.
Tsunade just finished penning her response when there was a knock at the door. She folded up the letter and gave it to the owl who wasted no time fluttering out the window. She called for them to enter.
Kakashi walked in, followed by Naruto, Sakura and Sai.
"Oi! Tsunade-baa-chan! What's this about? Another mission?" Asked Naruto shoving his hands into his pockets.
"Baka! Show some respect to the Hokage." Said Sakura scolded.
Sai, as always didn't say anything and remained emotionless.
"We have a very important matter to discuss." Tsunade reported. Sakura and Naruto's expressions immediately turned serious.
"Years ago, during the Second Shinobi War, when Sarutobi-sensei discovered a crack in our world."
"A crack?" Naruto interrupted, dubiously. "Tsunade-baa-chan, what -"
He immediately stopped speaking as Sakura cracked her knuckles menacingly. Tsunade glared at Naruto before she continued speaking.
"The crack leads to another world. One where wizards and witches live. It was purely accidental and best left a secret. Only few in their community know about it. Today I received a request from them. In their dimension there is a school called Hogwarts, much like our ninja academy. Their headmaster has hired us to protect a boy named Harry Potter and I want you all to go."
Tsuande was greeted with blank stares when she finished speaking. Finally, it was Naruto who burst out laughing. "Good one, Tsuande! Hahaha April Fools, you really did get us this time, I'll give you that. I mean wizards? Hogwarts? Who helped you come up with that? Kakashi-sensei?"
When Tsuande failed to respond but instead clenched her fists imposingly, Sai sighed, "It's August." He muttered.
Naruto shook his head. "Ok fine. But another world? Whoever heard of such a thing?"
Sakura shook her head. "There are other planes of existence, Naruto. The place where your frogs come from, for example, is another world. But this...You aren't joking, are you Shishou?" Sakura asked hesitantly.
"Not in the slightest." Said Tsunade, narrowing her eyes at Naruto who blanched.
"Why does he need protecting?" Asked Kakashi.
Tsunade sighed. "There exists a man named Voldemort, a very powerful dark wizard. He has recently come back to power and wants to kill this Potter boy."
"A babysitting mission." Naruto complained. "Those are the worst ones."
"Is the boy special?" Asked Kakashi.
"The lynch pin to the entire wizarding world." Replied Tsunade gravely.
Everyone fell silent.
"Well, I want you to leave tomorrow morning. Be all prepared and ready by dawn at the entrance gate. Kakashi will know what to do from there." Tsunade reported, organizing the papers on her desk.
Naruto looked at Sakura, half expecting she would have a better explanation for him, but she merely shrugged.
Note: With the Order of the Phoenix and the Deathly Hallows out, I couldn't resist posting this story. I always wanted to do a Naruto and HP crossover so here it is. Construtive Critisism needed so please review and tell me what you think :)