[When he sees her smile, he can't help but smile himself. This Emiya Shirou has no reason to know anything is amiss - all he can feel is a simple, profound relief. They need to assess the situation, figure out where they are and what's going on- but he doesn't have to worry or wonder about where Sakura is while he's in this weird place. She's hear with him, so he can protect her. He will protect her.

He won't allow any harm to come to her.

But for now, he breathes easily. Relaxed, as he reaches out to give her a light pat on the arm.]

...Yeah. For now, we'll look around together and figure out what's going on.

[He takes a quick glance around the room. It looks like other people could be in here at some point, or already were, but at the moment...]

Even though there are other beds, it doesn't look like anyone else is in here with us. Let's give things a look outside.