If you are about to watch this file: The final line, spoken by Nagisa to his own students seven years later, is:
It seems you’ve referenced a file title: — likely an episode of the anime Assassination Classroom (Ansatsu Kyōshitsu). Assassination.Classroom.S02E25.Future.Time.1080...
“Now then, class — let’s begin today’s lesson.” If you are about to watch this file: