A spinoff of Ansatsu Kyoushitsu and a sequel to the short anime film, this story is set in a world where Koro-sensei is the Demon King, and the students of Class 3-E are the heroes destined to defeat him. They attend Kunugigaoka Magic School, where they learn the arts of swordsmanship and sorcery. Brace yourself for a strange and exciting adventure!