Koro Sensei's lessons in verbal defense are put to the test when Karma must use his brains instead of his brawn to rescue a classmate. Then things finally begin to go smoothly for the students of 3-E. Everyone receives some good news about their futures, and Nagisa settles on a career goal. But the peace is broken when the world's nations miraculously manage to coordinate their efforts long enough to launch a plan to assassinate Koro Sensei -- with the aid of the strongest mercenary in the world and an ultimate weapon! Will anyone break ranks to protect everyone's favorite tentacled teacher...?

This book reads from right to left.