Her roommate was guarded. Why? She'd made no threat, and she didn't expect there to be a threat in their room. That's part of why she locked the door... while they were within the Academy grounds, there were always strangers about. Being too trusting could easily be a mistake. It was just basic security.

Those thoughts were pushed from her mind as her roommate introduced herself. That was certainly an interesting first impression, but now the ball was in [i]her[/i] court. She has to follow that up with something, though, doesn't she?

"You forgot your schedule? That won't do, Yamada-san. Even if you [i]are[/i] an agent of Chaos, how do you expect to survive here with such obvious behavior? If you're going to infiltrate the enemy base, then you need to blend in more. Schedules may be against your very being, but you'll need to abide by them if you hope to survive."

They're roommates, after all. She shouldn't alienate the girl in her own room. If there's one person she makes her friend, it should be this girl.

"You should hurry and find your schedule. I've got mine right here." She picked up a piece of paper from her desk, showing it to her roommate briefly before looking it over, herself. First class... "Math? Nnngh..."

Though her laundry was unpacked, there were still a few cases on her side of the room. One of them was shaped like a guitar, but... for a guitar, the shape was a little funny. It was a shamisen, though she didn't expect a lot of girls her age to know that from the shape. There were also a few sheathed katana propped up against the wall in the corner, though Regan was currently going about setting them on their display stands. One of the short ones goes on her bookshelf, acting as a prop to keep her manga from falling over.