Koro-sensei
Also known as: The Reaper, Unkillable Teacher
A Mach-20 yellow octopus who blew up the moon, then demanded to teach the class assigned to assassinate him. Once the human assassin called the God of Death, he spends his last year giving thirty discarded kids a reason to aim — at him, and at life.
Popular Koro-sensei Ships
Other AssClass Characters
Nagisa Shiota
5k works
Class 3-E's unassuming note-taker, whose natural killer's bloodlust hides under pigtails his mother forced on him. Koro-sensei's most attentive student, he channels everything the octopus taught him into becoming a teacher himself.
Karma Akabane
5k works
Class 3-E's red-haired delinquent genius, suspended for violence and reawakened by a teacher actually worth respecting. His mischief hides top-of-the-nation grades, and his civil war against Nagisa over Koro-sensei's fate is the series' emotional climax.
Frequently Asked Questions
How many fanfics feature Koro-sensei?
Koro-sensei appears in 3k+ works on AO3, making them one of the most popular characters in the AssClass fandom. You can browse all Koro-sensei fanfiction using the Fanfict Reader app.
What are the most popular Koro-sensei ships?
The most popular Koro-sensei ships include Koro-sensei/Aguri Yukimura. These pairings feature prominently in AO3 fanfiction.
What tropes are common in Koro-sensei fanfiction?
Koro-sensei fanfiction spans many genres and tropes. Use Fanfict Reader to browse and filter stories by your preferred tags.
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