Satoru has left girls swooning after his first kendo practice.  Everyone is talking about him, and there's a clamor when they discover that he's living with Makoto.  But at home, his stiff demeanor makes it very awkward.
How come everyone knows?
Warum weiß das jeder?
¿Cómo supieron dónde vive?
¿Cómo supisteis dónde vive?
Pourquoi tout le monde 
est au courant ?
Perché lo sanno tutti?
Por que todo mundo sabe?