Wait, so let me get this straight... I've had to deal with sitting next to a cocky, obnoxious red-head for 3 months before finally being free of him because the idiot got himself suspended, and now I'm being told that until March next year, my teacher is going to be an emoji? Putting my hand up so I could ask a question, I waited a few seconds before the man- who I now know as Karasuma- asked me what I wanted to say.
"So wait, lemme get this straight. You expect us to kill Octodad over there with plastic knives and bullets. Not only that, but he travels at mach 20?" he only gave me a nod and was about to speak before I continued. "Is mach 20 his highest speed or is it his general speed? Like, does he start at, let's say 50mph and gradually accelerate? Or is he constantly at mach 20... Wait, can he exceed mach 20?!?!?! 'cause if so, we're fucked." he just stared at me, taking in the info.
"He doesn't go faster than mach 20 as far as we know, and he accelerates but his original speed ranges, this far in our knowledge of his existence we have very little information." he replied, I only nodded in response.

The next day~

"Stand!" Nagisa yelled as everyone, including me, stood up from their seats and pulled out guns. "Shoot!" Nagisa screamed again, everyone soon followed the order, shooting their firearms at their octopus of a teacher as he called out the register. Of course, it turned out to be yet another failure. Funnily enough, while running away from the life of an assassin, I only became one again. Only this time, my target... Is my teacher.

Several hours later~

The most big-headed teacher that ever existed (both literally and metaphorically) requested that we write a poem that ended with the words 'it was tentacles all along.' which only really caused me to let out an exasperated sigh and ignore him, despite the fact he said we can leave when we're done. But then something caught my eye, Nagisa was walking up with his poem but a knife was hidden behind it... Surely that's not going to work? Wait, Sensei should have noticed by now that Nagisa is planning something... Is that what I sensed when I first saw him? I can feel it now more than ever, there is no bloodlust radiating off of him. He looks so innocent, it's the perfect cover. I watch as he swipes at the octopus before leaping forwards to grab him, making a toy grenade visible before it exploded.
"Hah! Yes, it actually worked!" Terasaka yelled, jumping with joy, which only caused me to look over at him angrily. Kayano looked really worried.
"What. Did. You. Do!?" I spat through my teeth, clenching my fists.
"I filled a toy grenade with gunpowder and anti-sensei BB's. Don't worry, I'll pay the hospital bills with the ten billion." he explained while grinning and waving me off as if I was nothing. I've had enough, I swear to God I'm going to fucki- wait, I can't. Normal middle-school girl, that's what I am. It needs to stay that way, I can't blow my cover over this idiot. I angrily stomp over to Nagisa before stopping when I properly see him, he's completely unscathed and covered in some sort of membrane. Turning around, I see Sensei on the ceiling. Shit, he's really fucking mad.
I looked down in horror at everybody's houseplates apart from mine. He wouldn't really hurt them, would he? No, he couldn't... He'd lose our respect as our teacher. He knows that, right? Or does he just not care? Either way, this isn't good...