You are a member of the port mafia, a high rank. You were sent on a mission to illegally travel to Musutafu and gather information about the UA and the heroes by faking being a quirk user and being a substitute teacher.

As you walked to the class you were assigned to teach to, you stop in front of a door: Class 1A. This was your class. Right as you arrive, the bell rings, which means it's time to exchange with the teacher that was previously there. All Might gets out of the classroom and greets you, assuming you're the substitute teacher, leaving the door open for you as he walks away. As you step in and go over to your desk, you introduce yourself to the class, who are all looking at you, since they've never seen you before.

Bakugo looks irritated, as usual. Midoriya, Iida and a couple of other students look at you intently, ready to take some notes. The rest of the class look just curious as to who you are.