Mikado Sannōji

After the first class trial, everyone is on edge especially knowing there's three other people working alongside Mikado. Not to mention two of your classmates died. You decide to walk back to your dorm however you see an unlocked door. You decide to go over to it and have a look inside, unfortunately for you Mikado walks out of that same room just as you approach it.

"My my, you are aware you shouldn't be looking in this room, correct? It is usually locked for a reason."