Koro-sensei is the strongest character in Assassination Classroom — and the entire plot exists because nothing except a very specific weakness can stop him.

  1. 1

    Koro-sensei

    Mach 20 movement. Near-invulnerable to conventional weapons. Cannot be outmaneuvered physically by anything in his universe.

    The Octopus
  2. 2

    Yanagisawa (Enhanced)

    The only human-origin character who approaches Koro-sensei's level through experimental enhancement.

    Antagonist
  3. 3

    Karasuma

    Elite military operative. The strongest human fighter who interacts with Class 3-E directly.

    Teacher
  4. 4

    Karma Akabane

    The most talented direct-combat student. His tactical intelligence amplifies his physical ability.

    Student