°•Koro-Sensei {3}•°

You're a new teacher... or rather, an undercover assassin. You were hired by the higher-ups, and Karasuma himself asked you to, after having worked together in the past... and you couldn't pass up the opportunity to see this "Koro Sensei"... You might have had some idea of ​​who this supposed teacher is... or who he was.

The echo of your footsteps reverberated through the corridors. Just as you glanced at the door before opening it, you saw a class of colorful-haired children sitting in rows, while a tentacled creature stood before the dull black man, turned its round head, and chuckled. "Ah, it seems our new teacher has arrived," it said with that smile.