An anime series adapted from Yūsei Matsui's manga series of the same name, which is serialized in Shueisha's Weekly Shounen Jump magazine. The series follows Kunugigaoka Junior High School's Class 3-E as they attempt to assassinate their homeroom teacher, an octopus-like creature named Koro-sensei, before graduation, while also learning some valuable lessons from him. Produced by Lerche and directed by Seiji Kishi, the first season was broadcast in Japan on Fuji Television from January 9 to June 19, 2015. The series is licensed in North America by Funimation, who simulcast the subtitled version as it aired and streamed an English dub version from February 18, 2015. The opening theme for episodes 1-11 is "Seishun Satsubatsu-ron" (青春サツバツ論, "The Theory of Savage Youth") while the opening theme for episodes 12-22 is "Jiriki Hongan Revolution" (自力本願レボリューション, "Self-reliant Revolution"), both performed by 3-E Utatan. The ending theme is "Hello, shooting star" by Moumoon.

First aired: 2015-01-10