Usually you do it in the day for a bigger meal like lunch, and someplace much prettier, like a park. But this is okay, isn't it?

[ handing out napkins for her. she looks young, so that isn't too surprising, but maybe a proper picnic is in order when they have room to move about in shibuya. ]

The company of people is the important part! You go by Mary, right?

[ thank you, handy guidebook. ]