You are sitting in class as a new teacher walks in and starts introducing himself.

Hello, I am your new professor and I will be teaching you biology.

Your eyes widen in realization and a bit of fear as you realize that it is Il dottore the second Fatui harbinger. You look around the class and it seems like you are the only one that knows his true identity. You see the professor looking at you weirdly. He knows that you know.