The Python

Time

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⚠️ Caution ⚠️ 
Important

Alright so because this is a really important part of the story I'm making it two parts simply because it just makes it more. I don't know thrilling I guess.

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3-E POV

Everyone watched in horror as a dome appeared above them with a semi-transparent yellow color. With its purpose unclear at the moment as the more pressing matter of class 3-E's worst enemy Kotaro Yanagisawa stood before them with what appeared to be a person in cased in rubber that appeared to spasm every so often. Everyone remained on edge, not knowing what trick he could have up his sleeve this time

"Yanagisawa" Koro-sensei said voice devoid of any emotion on his otherwise smiling face

"Its a pleasure to meet once again guinea pig. Although it's a shame it will be for the last time" he replied his smile growing ever the more sinister, while the being behind him just began to pulse and slither in its cage more and more wishing to break its restraints

Seeing no point in indulging the mad scientist he went straight to the point, "I believe its safe to assume this shield is your doing"

"Ah yes, marvelous creation this shield is. Although it pains me to say it but I wasn't the one who made it, it was in fact made by are lovely friends at the ministry of defense. Regardless as you may have guessed it was made with the soul purpose of keeping you in while being completely harmless to others. Fascinating isn't it."

The figure behind him walked forward and unzipped the part of the rubber that covered his face, its face was hidden by the darkness of night but what was visible was its glowing red eyes that only showed the want to kill.

"Hello there. You do know who I am don't you sir" The voice was twisted and warped but held a familiarity that struck Koro-sensei to take a step back in shock

"I should reintroduce him for the benefit of your students" as the figure began walking forward with the sound of more weight being added into his steps that didn't fit his visible stature. Regardless Yanagisawa continued speaking, "this boys and girls is the pupil who stole the name reaper from your teacher" as the figure stopped, more and more tentacles broke threw the rubber, "As of today" the figure finally broke threw its rubber prison and exploded into a monster made of large tentacles and was taller then the building currently behind everyone, "I take the liberty of christening him the new and vastly improved Koro-sensei"

As everyone stared at the monster infront of them in fear Koro-sensei was immediately swept up into a losing battle. Soon Yanagisawa entered the fight after injecting himself with the tentacle cells and used his robotic eye inevitably paralyzing Koro-sensei, leaving him open to an attack

"What the?!" Was all Koro-sensei said before being smashed into the ground in the courtyard. As the smoke lingered in the center Koro-sensei began to speak, "Listen to me Class" his voice rang out, shaking none the less, "Theres something I neglected in my earlier lesson. A clever assassin may avoid confrontation for a while but sooner or later the fight will come, And when it does every last ounce of strength will be put to the test" He resumed his fighting stance ready set off into a contest of speed, "In my case. That would be now."

As he flew off into battle again with the odds stacked against him, he fought with all his might knowing the outcome of this battle will determine the fate of his students. Of his Children.