It was the next day with the kids waiting for a certain yellow octopus to show up. While waiting a few of them were talking to each other quietly, some about the now permanently crescent moon, and others were more interested in the new student: Takato. Takato was silent but watchful of the others a small smirk on his face having thoughts about the class.
'Let's see how these ones will last being around me, I do wonder if they will last the whole year with me being here?' it was after thinking this that he looked over at Nagisa 'she will be a good informant or whatever, but let's see if I can make her mine' these were the thoughts of Takato while watching them.
Only a few minutes later did their new teacher came crashing outside and then came inside to start class. Koro-sensei started the roll call while at the same time dodging the BBs that were being fired at him, only one of the students wasn't shooting at him; this one was Takato who was moving forwards throughout the shots without getting hit by any of them.
It was only when his name was called did anyone in the class realize where he was, for when his name was called for roll call he was right in front of Koro-sensei with both the knife and gun out. This shocked Koro-sensei badly for it was only seconds after saying he was here that he shot one BB and did a slicing stab towards Koro-sensei, the shot took off a tentacle and the slicing stab got him in the left shoulder.
Now the entire class was shocked for Takato was the first one to not only once but twice injured Koro-sensei and this was only the first day of class.
Koro-sensei saw the look in Takato's eyes when he attacked; they were somewhat dull barely any light in them as if this wasn't the first time that he went in for the kill on another person. When he tried for a third time, Koro-sensei stopped him but also made it so that he was in a submission hold in order to calm him down.
Calming Takato down took around a half an hour to do, well it was not really calming him down it was more like getting him out of the state he got himself in. When that was done class started and later after lunch break, Nagisa still had that grenade around her neck.
There was a different outcome though, for even though Koro-sensei still shed his skin to protect himself and Nagisa from the blast, but Takato was right next to her with what looks like a translutiant red barrier around the both of them. He was holding Nagisa against himself and was slowly lowering the barrier; he stared at the ones that set off the grenade his eyes were glowing a touch and it was barely noticeable.
He knew who did it for they started cheering, not caring that they could have killed someone with 200(?) BBs flying at the speed of sound. Koro-sensei was pissed, for he was entirely black with a demon face showing and he also had a miasma around him that was slowly encompassing the room. Koro-sensei sped from the classroom and appeared seconds later with name plates and explaining that even though he couldn't harm them, he could harm their family and friends.
During the explanation Takato was getting Nagisa out of the skin that the octopus shed off himself. When she awoke he said "I know what you truly are Nagisa, and you are like me you like the thought of ending someone's life. I look forward to the day you let loose." With that he let go of her once she could stand straight on her own and went back to his desk.