[At first it's Tatsumi simply looking at the screen, as if he's not sure it's working.  Once he's checked the terminal again, he'll clear his throat and adjust his glasses, very calm.]

Good evening . . . I'm Tatsumi Seiichirou, but Tatsumi is fine. 

[The expression on his face is a little hard, even wry.]

I'm afraid I don't really believe that the worlds I call home were destroyed; after all, I would know.

[He's not going to buy that letter for a moment.  The next few things are polite, but also take on a slight lecturing quality.]

Still, it's best to find out what purpose an unusual world like this one serves.  I've taken the liberty of walking through a few floors in the last few days; I'm sure I hardly need to mention how unusual they are.  

There are many of you who are hardly new at this; if you don't mind, could you share what you've learned with me?  In person; I will take time on the 3rd floor library today. 

[Oh, right.]

In the cooking section.

[He'll be there all day.]