Koro-sensei Quest! - Information

Summary and events

1. Koro-Sensei, a yellow being with superhuman skills, is hired as a teacher of class 3-E of the Kunungigaoka School.
2. Class 3-E is composed of students considered problematic and maladjusted, who are despised by other students and teachers of the school.
3. Koro-Sensei reveals that he is actually an alien being who has destroyed much of the moon and threatens to destroy the earth in a year unless someone kills him before that.
4. Koro-Sensei proposes an agreement with Class 3-E: If they can kill him before the deadline, he promises not to destroy the earth and will still give them a cash reward.
5. Class 3-E accepts the deal and begins training to kill Koro-Sensei while also trying to improve their academic and social skills.
6. Over time, Koro-Sensei becomes a mentor and friend for class 3-E students, helping them overcome their personal problems and grow as people.
7. Class 3-E faces various challenges and enemies along the way, including other killers hired to kill Koro-Sensei and the secret organization that created it.
8. In the end, Class 3-E manages to kill Koro-Sensei, but finds that he had a noble reason to threaten the earth and that he considered them his family. Students graduate and move on with their lives, but never forget Koro-Sensei and what they have learned from him.