In Class E, homeroom began with the usual arsenal throw at their target-their teacher, Korosensei.

"Everyone, please take your seats. I have wonderful news for you."

"Don't say, another transfered student?" Nakamura Rei asked a little too happy.

"NYHA?! Nakamura-san, how did you knew?! Don't tell me that you listened again on our meeting!"

"Hey, a girl has to be always informed. Don't blame me."

"Ha... Yes. It's true. Everyone, today a new transfered student will join you in your job to kill me. But! There is something even Nakamura-san doesn't know yet! A new teacher will come too! A math teacher."

"A new teacher?!"

"A man? Or a woman?"

"That will have to wait. Karma-kun! Put your spices away! I want all of you to behave yourselfs."

"Tsk."

"Karma-kun!"

"Sensei...tell us. Are the two new people assassins? Or, at least know how you look?"

"As i said just now, you will have to wait."

NAGISA POV.

BAM!

"I'm sorry to be late!" a tired voice said from the now opened door.

It was a boy. A boy with incredible untamed hair and doe brown eyes. His image screamed innocent and i could already fell Karma-kun and Nakamura-san ploting a prank on him. But i had a feeling that he was not like he seemed.

Our eyes met. For a second i could feel that he was shocked by something.

"Ah, you have to be Sawada-kun, right?" asked friendly korosensei.

The newly introduced Sawada looked at the weird voice and was met by a stange creature.

"...yes. That's me. I'm sorry that i was so late. I only found out about the transfer about an hour ago."

Weird. That wasn't the reaction that i was expecting. And did he said an hour ago?

"It's ok. If you want, come to introduce yourself."

"Yes." He said but after only three steps he sliped and he almost hit the floor if korosensei wasn't there to catch him.

"Ah...sorry! I'm so sorry!"

Ah, so he was clumsy.

"Sawada-kun, you're ok?" asked concerned korosensei.

"Yes..."

"Good. Now please introduce yourselfe."

"My name is Sawada Tsunayoshi. 15 years old. I transfered from Namimori Middle School. Pleased to meet you."

"Hey...are you an assassin?" asked Karma amused.

With an flinch noted by everyone from our class, Sawada-san said a little scared:

"N-no."

"No? Then why are you here?"

"B-because m-my t-tutor made me..."

"Your tutor? And you listened to him?"

"I don't r-really have a choice..."

"Why? Who is your tutor?"

NORMAL POV.

"Me." A voice from behind korosensei said making the teachers tense and the students ready their guns.

"Reborn!" Tsuna said almost mad."Why are you hiding behind korosensei?"

"One. Because i can. Two. I wanted to see what kind of students have they raised for this mission. And i'm dissapointed."

"What?!" Terasaka barked mad. No one has any right to say anything bad about them.

The misterious figure showed himself and most of the girls blushed. The man was so handsome. A black suit and an yellow shirt with a fedora on his head and...was that a real chameleon...? Yes it was.

"My name is Reborn. I will be your math teacher. Pleased to meet you. I hope we will have a fun time together." He smirked and put his arm on Tsuna's shoulders to make him relax.

That day, most of us knew that we will have a hard time with these two. We were right.