Psychopathy.

When the cold logical part of the brain holds the child self captive in its own house of horrors, and thus a psychopath is born.

indifferent to the self and others, empathy shut off and only the sick forms of joy afforded by cruelty and vice available for their consumption.

Very similar to a snake that represents evil in a human's myths.

For these creatures do not require love to raise their young like mammals do, and so they do not evolve the ability to love - only to survive and kill for their own need.

Likewise the psychopath does not feel love, they are an evolutionary throw-back to our reptilian brains, an accident of genetics if you will.

You my reader may call someone a snake.

For example; you may say that your best friend is a snake for snitching on you for vaping in the bathroom (totally not speaking of experience). Fake friends am I right? Anyways..

But that's not the type of snake we're taking about.

A psychological snake, someone with the tendency to do whatever in their power to achieve their dreams.

And it just so happens that this so called 'snake' has quite a extravagant plan which he's set on fulfilling.

"Tamaki Sempai! Y-you're so funny! now can you stop with this joke because it's getting out of handdd" Jiro yelled amidst the silent whispers of confusion and fear.

The third year who had been unwillingly dragged into this situation began to shake, his eyes alert with fear while holding a sort of control with a button in his hand.

Izuku hovered over him, placing his weightless hand on Tamaki's shoulder in a supportive manner "students of class 1-A... if you still think this is a joke, please take a look out of the window"

Izuku watched everyone rush to the side, however amidst the panic one person remained seated - his face pale and unmoving, crimson eyes shaking with rage and worry.

"Deku..." he muttered underneath his breath. Katsuki hadn't slept in a week, terrified of these reoccurring dreams that plagued him as he slept. The young teen even thought he was crazy because of what happened with his parents.

But now, oh now it all made sense.
The nightmares, hallucinations. Everything. It was all Izuku's fault. And Katsuki absolutely fucking despised him.

It seemed killing him once simply wasn't enough.

Screams snapped Katsuki out of his daze, his class banging on the window's glass while crying a waterfall of tears.

Aizawa stood outside with a knife in hand, his face carved into a smile as Mic lay dead at his feet. An ever growing pool of crimson growing underneath him.

The sight was something else. To see their teacher of whom they trusted for such a long time commuting something so unjust and horrific - it was hard to believe.

Hell erupted, quite literally.

Screams and the sounds of sobs, they tried to bang on the glass - to break it with their quirks. Anything but their quirks would not work for some reason.

The only thing that could so was stare into Shota's black eyes wild with excitement of what he had just done. His tongue streaking along the knife as if it were some sort of delicious treat.

Suddenly silence fell unpon the students. It's not like they willingly went silent obviously, something was preventing them from speaking.

In a second, Aizawa vanished and so did the shadowy ghost of Izuku. Leaving only Tamaki stood there in the silence, the remote control still imbedded in his hand.

Students clawed crazily at their faces, jaws open to the brim in an attempt to let out even a small squeak of a voice but nothing happened.

Tamaki let out a slow controlled breath and attempted to loosen his body movements. He looked like a clockwork soldier and he was certain this wouldn't impress Izuku. So he gave his shoulders a wiggle and lolled his head in a circle, letting his mind slacken to a more relaxed state.

"I-I'm sorry to do this... but it's really out of my hands now. and I think Midoriya-kun deserves justice for what everyone did to him.." Tamaki watched everyone panic for what he was going to say next - Kirishima trying to desperately pry the door open while silently screaming.

It was so quiet you could even hear young Tamaki's deep breaths of comfort.

"M-Midoriya is a nice person. I- don't know why anyone would want to do what you did. I apologise"

With that his finger smashed down on the button.

Haunting laughter racked the school as every part of the building was encased in solid quirk reflecting iron - boarding up every available window and door.

Darkness encased the classroom, lights flickering in sync with the high pitch giggles.

Every phone in sight smashed randomly, leaving glass scattering everywhere as people ran to huddle in a protective circle; preserving what they learnt in hero training.

Any sort of communication was lost. Voice and text.

In darkness and silence, what will each class do?

This was the first test izuku had assigned, who really was willing to break under the enormous pressure as become violent to their so called friends?

Who were the serpents under the rock?

Meanwhile... three people once heroes, now converted to villainy happily sat in a ramen restaurant.

"That looks like it hurt Shota! Haha I know I told you to scare them but wow!"  Izuku's laughed delightfully, his voice and body unseeable to any other costumers but the other two at the table.

Tamaki smiled. He felt like he had just cleared a major hurdle in his life.

Aizawa shrugged his shoulders, seemingly back to his old bored self.

"It felt like a good idea in the moment" he mumbled, letting his hair shield the fresh scabs on his face.

Izuku sighed, placing a transparent finger on the teacher's face and healing the scab in a couple seconds.

"Tadaaa! I'm not all death and destruction~ I can be your guardian angel!" he giggled, voice slightly echoey.

Aizawa took a swig of his coffee "more like guardian devil. But I don't think some other people would class you as a guardian Izu"

The ghost gushed at his new nickname Aizawa had given him "but you guys are my favourites so I'll always be here for you~" he sang, floating out of happiness - bouncy green hair swishing with his movements.

Tamaki giggled, slurping his ramen with his soft purple hair tied in a ponytail "You're funny Midoriya"

"Call me izuku!" He hummed sweetly, pushing Aizawa's food closer to him to make sure he was eating.

Tamaki nodded sheepishly, his pointed ears turning a little pink at the ends "how do you think the class will do?" He piped up a little, scanning both Shota and Izuku's faces with shy eyes.

"They'll be absolutely fine...! But I really am looking forward to doing that thing you came up with Shota. Once I've made a fewww more preparations I'll let you have as much fun as you want Sensei!" He replied, looking slightly enviously at the two's food.

Tamaki noticed this "izuku can you not eat?" The third year decided to not question what Izuku and Aizawa had in plan for the school...

"Pft! Tamaki-Sempai I'm a ghost, did you forget that I'm dead already?"

Tamaki nodded nervously, finishing his off by drinking the left over broth.

"Finished?" Shota questioned, placing his empty coffee mug down.

"Y-yes thank you for the food"

Aizawa waved him off "it's whatever, I'm not paying for it anyways" he stood up to leave, making the poor young boy confused.

"I have some money.."

"No no! Just a little explosion will do the trick!" Izuku intercepted their conversation, taping a small explosive to the window - a countdown of fifteen seconds starting already.

Aizawa sighed "do you really have to blow this place up?" He deadpanned, pushing the frozen stiff Tamaki out of the doorway so they could get away from the shop.

Izuku floated in front of them, his face plastered in delight "well Shota would you rather unicorns and rainbows or something? Don't be boring!"

"You know what I wouldn't mind unicorns"

"Well I can probably fetch you one from the underworld Sensei"