By Episode 9, a new student arrives: (堀部糸成), a pale, emotionless boy with tentacles grafted onto his head and hands. Unlike the class, Itona is not an amateur; he was trained in a secret government lab and carries anti-Koro-sensei tentacles – the same material that makes up their target.
This episode is a because:
The premise was absurd yet heartwarming: a powerful, octopus-like creature known as Koro-sensei destroys 70% of the moon and threatens to destroy the Earth within a year. In the meantime, he becomes the homeroom teacher for Class 3-E of Kunugigaoka Junior High School. His students, marginalized by the school system as "rejects," are tasked with assassinating their teacher to save the world.
However, to the seasoned otaku, the digital archivist, and the lovers of Assassination Classroom (Ansatsu Kyoushitsu), this file name represents a specific moment in time, a standard of quality, and a relic from the golden age of fansubbing and encoding. It signifies a high-definition Blu-ray release, encoded by a specific group, watched and cherished by thousands.
The title you mentioned appears to be a specific release from an anime fansub group, likely , featuring Episode 09 of Assassination Classroom Ansatsu Kyoushitsu Episode 09 Overview: "Transfer Student Time"