Alright a few things to establish before I start on stuff.

I am a student, which is to say I am very inexperienced, honestly, I would very much appreciate any feedback you all could throw my way.

As my first fic, my flaws and inadequacies would be quite obvious so I hope you guys can endure it along with me.

"Lets begin!" Said the bluenette, a little more confident in himself.

As expected, class 3-5 of Paradise high paid him no heed and remained rooted to the ground,dazed.

"Well I guess this is to be expected considering I just told them to kill me." A small sigh escaped his lips.

Nagisa put back on his cheery facade and started to call out the names of every single student one by one. All the while the students of 3-5 were busy analysing their new teacher. Most of their teachers in the past sat in front of the class, letting them do whatever they wanted. It wasn't as if they could control a class of 15 of the most rowdy students in the school.

Class 3-5 have gotten content with this indifference, they have gotten comfortable with the looks of fear each new teacher shot each and every one of them. Even the toughest of teachers couldn't look any of them in the eye comfortably. So what the hell was this pitiful excuse of an adult doing teaching them algebra. Moreover, with nary a tinge of fear

Throughout the whole math period, Takeda Ryu could only stare blankly at the chibi teacher. All the equations and problems flying over his head. And while this is what happens on any other day regardless, this time was different. Ryu found himself absolutely stunned by his teacher's performance. One would say he was captivated, not that he would ever admit it. The way his teacher pivoted his heel to get behind him, the way he pulled lightly on the hem of his shirt to make him lose balance, the way he prodded on his carotid artery made Ryu completely and undoubtedly stunned.

'Come to think of it, he did say we were welcome to try and kill him no? Why not take him up on his offer?' A miniature devilish grin made its way onto Ryu's face

Ryu picked up a random metal ruler from the ground and winded up. He waited for the exact moment his teacher turned around to write a couple of equations on the board to unwind and launch the metal ruler to his head.

Nagisa very calmly put down the piece of chalk in his hand and gracefully turned around. He raised his hand and caught the metal ruler in between his middle and index finger. As if this was an everyday occurrence, he put the ruler at the edge of the teacher's table and continued teaching with the piece of chalk.

"And this is how you solve problems like this. Don't think of it as a problem as a whole. instead, break it down to different problems and solve them one by one. This method can be applied to most other questions so don't fret if you see a particularly long question." Nagisa put the chalk down and turned to face his class once more

"Also that was a good try Ryu-kun, glad to see that you have taken my request seriously. However do try to conceal yourself next time, winding up and throwing a metal ruler at that speed wouldn't hit me even if I was sleeping. For the record I was serious about killing me. If any one of you can even touch me at all, I would not be opposed to giving you free periods for the rest of the year. Until then though I expect every single one of you to take studying seriously."

Getting called out on by this sorry excuse for a teacher, Ryu almost lost his cool and wanted to rush in to teach the idiot a lesson. Who does he think he is ordering us around when he's more than a whole head shorter than everyone here. Ryu looked around to see how annoyed his classmates were and how this idiot teacher would handle the situation.

At that moment of looking around, Ryu realised that most of the other students were taking notes. Most of them looked like they had a sudden epiphany. Considering the students of 3-5, this was unheard of. Ryu couldn't remember the last time he picked up a pen with the intention of taking notes.

Faced with indifferent teachers who had no intention to teach, obviously none of the students would be inclined to learn. However the teacher in front of them was nothing like the others, normal teachers don't walk up to students and tell them to kill him. Normal teachers don't remain unfazed when the toughest student does try to kill him. It remained unsaid that the students realised that Nagisa was no normal teacher. Nagisa may not have their respect or admiration, but he certainly captured their attention

"The rest of you are released, however I would like for Takeda Ryu and Kurosaki Gin to stay back for a while. I would like to discuss some matters with the two of you" The bluenette announced before tapping the roll book twice on the table.

'Not too bad for a first lesson if I do say so myself. I have engaged with at least half the class, the other half seems to be disinterested or genuinely wants to kill me. The power dynamic is too different from the assassination classroom. I have to put in some effort to fix this before it gets too bad' Nagisa sighed and leaned back on his chair before noticing the two boys walking up to him. 'Well I guess this can be solved tomorrow, during PE class. I'll make sure to balance this classroom tomorrow."

AN: Well if you're like me then you'll look forward to the next chapter. I'm aiming for a korosensei vibe where the students have a good relationship of admiration with Nagisa but also genuinely look forward to killing him at the same time. I'd also like to bring in other students of 3-E to show off the closeness and skills of Nagisa and the other master assassins.