The battle for Koro Sensei's life against a multinational operation's soldiers and weaponry is difficult enough, but now his creator, mad scientist Yanagisawa, and his former protégé, Grim Reaper II, join the battle to destroy himand they've both had major enhancements! But the stakes abruptly change when a 3-E student is fatally caught in the crossfire If there's one thing that enrages 3-E's teacher, it's harminglet alone killinghis students! Koro Sensei's fury and ingenuity know no bounds, even as fate inexorably catches up to him