There's an abandoned part of the city that Kaworu is fond of. Well, all parts of Tokyo-3 were abandoned, really. That's just what happens when the entire human race defaults back to a primordial soup type substance.
But he likes this particular block, in no small part than because it has a useful pharmacy right underneath a useful clinic. Of course there are no pharmacists, no nurses and no doctor, but this doesn't trouble him any. Kaworu knows how to take care of himself with the resources offered to him.
But at the moment, he needs to take care of someone else. He's
led Miharu all the way from the beach and now it's time to look at that shoulder. All he really needs is the pharmacy, today.
"Sorry it's messy," Kaworu says, as he leads the way in. "That's kinda what happens after the apocalypse."
Heh.