"Ooh, trickier," she says, stopping in the doorway to turn over her shoulder and give her next words the right amount of gravitas. "How mysterious."

Not much fazes her. On the other hand, she can see that Shotaro is still a little unsettled about her mistake. Uh-huh, so she hit a nerve.

She pops into the bedroom and has a look about. It's not anything special. Strange bed (single-level, that'll be a change after the bunkbeds on the TARDIS), locker, desk, chair. It could use some personality. Not that she plans on being here that long.

"So what's that mean?" she calls out to him. "'Trickier'?"