"Just a few hours," Yoshiko admits. "It still seems like I'm dreaming this."

But the longer she stays here, the harder it gets for Yoshiko to pretend that this isn't real. She's really here, on a space station, with actual dragons, wizards, and slime monsters for her to deal with. A part of Yoshiko just wants to complain that she's a normal girl! This fallen angel stuff is just an act! She doesn't really believe in that stuff, why is she here in the first place?! But she knows it won't help.

At least You's here. If she's going to be dealing with all this weird crap, at least she's doing so with a friend.

"...is it true what they said about our world?"

That's the part she can't believe the most. That their world would just be destroyed.