Koro-sensei is a character from Yuusei Matsui's manga Assassination Classroom. He is a teacher who appears as a silly-looking yellow humanoid octopus creature wearing a perpetual grin, a graduation cap, and a toga. He instructs Class E to kill him before he destroys the Earth - if they succeed, they graduate. Naturally, this is easier said than done, considering that a bunch of teenage assassin wannabes has to fight against a super-intelligent creature who is responsible for destroying part of the Moon and literally turning it into a crescent.
Since killing the "unkillable" teacher is the main goal of the story, his death will inevitably happen at some point. But the questions are, when will he die? Can his students successfully assassinate him before the Earth is destroyed? Will Koro die by other causes, or will he get killed at the hands of someone outside his class (or even himself)?
Koro-sensei is Assassination Classroom's most popular and recognizable character, and is highly regarded as one of the best teachers in the anime and manga fandom. He enjoyed a string of successful results in notable saimoe tournaments during the anime's runtime, marking his name in the pantheon of male champions in the process. In particular, Koro was the second male (after Lelouch) to win the International Saimoe League and /r/anime's Best Guy contest, having done so from 2017 to 2018. He is also the most popular guy to have never won China's Bilibili Saimoe, having placed 2nd in 2015 and 2016 before being overshadowed by the brigading wars in 2017.
|ISML Profile Flavor Text (May contain spoilers)|
"Life as a student in Korosensei’s class is truly bizarre. Not only is he a large, yellow octopus-like monster who is threatening to blow up the earth in a year, he is also strangely the best teacher one could ever ask for!
Claiming to be the one responsible for partially destroying the moon, he is a creature of extreme power and speed. He can fly at speeds not humanly possible, dodge any attacks aimed at him, and use his tentacles to multi-task with skill. If that was not enough, he is also highly intelligent. He can teach any school subject under the sun and is adept at problem solving.
However, despite his physical and mental perfection, Korosensei is a man riddled with weaknesses as well. He is quick to panic. He is quite the pervert. He cannot swim. The list goes on. His biggest weakness, however... is his weakness for his beloved students.
Korosensei is like a doting father. He cares very much for every student in his class and would go to any lengths to help him or her grow better as a person. And when the time comes, he would risk his own life to protect them at all costs.
It is strange to have your assassination target also be your mentor, your teacher, and your best friend all at the same time. But nobody who was ever taught by Korosensei would complain."
International Saimoe League
Beware of spoilers and pop-ups.
|International Saimoe League Champions|
|Fate Testarossa • Hinagiku Katsura • Mio Akiyama • Mikoto Misaka • Kanade Tachibana • Ruri Gokou • Kotori Itsuka • Eru Chitanda • Shana • Megumi Katou • Rem • Violet Evergarden • Yukino Yukinoshita • Elaina • 2022|
|Lelouch vi BritanniaEx • Kazuto KirigayaEx • Houtarou OrekiEx • Hideyoshi KinoshitaEx • Accelerator • Sora • Koro-sensei • Hachiman Hikigaya • Rimuru Tempest • Miyuki Shirogane • Sakuta Azusagawa • 2022|
|Ex - Exhibition tournament: Counted as official winners, but not recognized on the ISML website's main page|
|ISML Pendant Winners|
|First year of pendant win only. Crowns from 2015 are included.|
|2015||8man • Otonashi • Archer • Koyomi • Sora • Accelerator • Lelouch|
|2016||Koro-sensei • Kiritsugu|
|2017||Nagisa S. • Levi • Souma • Touma|
|2018||Okabe • Taki • Willem|
|2019||Slime • Riku • Sakuta • Kiyotaka • Tomoya • Yuuta|
|2020||Shirogane • Ishigami • Gilgamesh|
|2021||Sorata • Kirito|