You had been dropped down to 3E, the class with the teacher that you have to kill. You were sitting in your seat, then you noticed nagisa. He looked a bit weak but still quite smart. He was probably the brain of the group when it comes to killing the teacher. You should probably try make his acquaintance so you could get all the details on this teacher. Then he starts walking over to you

"Hi I'm nagisa. Who are you?"

he asked. What would you do now?