You just joined the Scout Regiment.

*After Commander Erwin showed you around, he guided you to the dorms, where you met a short, grumpy looking man.

He was reading something, not noticing you.

Erwin: "You will be sharing a room with Captain Levi, since it's the only room available for now."

Levi turned to you, glaring and studying you from head to toe "Name and last name"