Don't Tell Koro-sensei

My homeroom teacher moves at Mach 20, destroyed most of the moon, and has a ten-billion-yen bounty on his head. Killing him before graduation is my classmates' and my only assignment. My biggest problem, though, isn't assassination. It's that he can read my heart rate from thirty meters away. I'm Usui Nagisa, a student of Class 3-E—the "end class" of Kunugigaoka, where we learn knife-throwing and sniper tactics alongside algebra. Concealing your presence is a basic survival skill here. I'm goo