AN: Here's the new story that I was talking about Naruto with Assassination Classroom. Hope you'll enjoy it!

Chapter 1

Transfer Student Time

Disclaimer: I do not own Naruto or Assassination Classroom.

Naruto was immortal as simple as that, Konoha has won the war but at a price, death. Everyone close to Naruto had died; about 96% of the population had been annihilated. Since the battle against Madara, Naruto need power lots of it to beat Madara and so Kurama had given him it, but it turned him into an immortal. Now all he could do is watch everyone die around him one by one. He had tried to take his own life many times but thanks to his quick healing i never left as much as a scar. So now he only have Kurama as his only companion.

Naruto had live for thousands of years and he was bored, who wouldn't be after just wandering around for many years with an over-grown fox that sleeps 13 hours a day as your only companion. He mostly live of selling the Icha Icha series nowadays, who would've know that there are so many perverts, he would have never thought that someday he would thank Ero-Sennin for his work. He also publish 'A Tale of A Gutsy Ninja' in honor of Ero-Sennin and it had become a best-seller in 1 week. All of that money would have been enough to buy millions of ramen cups. He also wrote a series called 'Naruto' which is a manga about his life but the ending was a little bit different with everyone still alive and breathing.

So the opportunity arises when a mysterious creature destroyed almost 70% of the moon. Naruto looked at the paper and grinned, 'This will be interesting won't it Kurama.' For once Kurama was paying attention. "This will be a challenge in who-knows-how-long, gaki."

It was true, they hadn't had a challenge ever since they defeated Madara, and this is just what they need, an octopus that move at the speed of mach 20. 'By the way Kurama it's 15,456 years.' Kurama grunted in response mumbling something about 'How am I suppose to know.' 'And the reward doesn't sound that bad. So shall we get going?' And then he ran at the speed of Mach 22 towards Kunugigaoka Junior High School while grinning like a mad man.

When they got to the school Naruto insist that he must go to class 3-E no matter what the teachers said about the class. Even though he had to run up a hill to reach there it was nothing comparing to his training and running away from very pissed of women (Sakura and Tsunade-baachan) that is after his life. He was opened the door. "Yo!" Waved and smiled. Everyone just stared at him. They shifted their stare to an octopus like creature that is taller than him standing in front of the room. 'Hmm, if memory serves me then this is my target.' The octopus creature also look confuse.

A man that looks strangely like Sasuke stepped inside the classroom. "This is the new student I was talking about Koro-sensei." 'So his name is Koro-sensei.' Koro-sensei just looks at the Sasuke look-alike like he was talking about aliens or something. After a while Koro-sensei just started to punch the wall, his face sorta red like he was blushing from the embarrassment, while he was doing that Naruto noticed that the students were shooting Koro-sensei with a gun or throwing knives at him, the knives look kinda weird though. Koro-sensei quickly recovered and announced. "Please introduce yourself."

Naruto just nodded. "I'm Naruto Uzumaki-Namikaze, I'm here to kill this octopus guy here since I'm bored -ttebayo!" At the last statement he took out a kunai from his pouch and press it against Koro-sensei's neck. "Let's have a fun year ne?" He said and smiled at the class, he whole class looks at him in shock. Koro-sensei was shock to and quickly slip away from the kunai's reach not expecting that someone could move on the same level as him or maybe even faster. 'Just who is he?' The whole class thought.

AN: Man, I'm on a spree today with updating and stuff. Hope you enjoy this chapter! Oh Naruto basically look like a middle schooler okay? R & R please! Flames will be use to fuel Naruto's jutsus.