A pic of Maki's house appeared in the news, because of durr.. these news.
Now stalkers know where she lives. >_<
What makes you think he would still live with his sister??
They might now know what her house looks like, but unless the reporter actually says the physical location (i.e. the street and what part of the city it's located in), then it probably won't be that bad. I wouldn't be surprised if she lives in one of those "gated" communities where you have to actually be a resident of the area to get in.
Couple of things...
Hardly any streets in Japan actually have names, and instead a bunch of blocks are grouped together under a name, which wasn't shown..
.
(You could probably find that house if you wanted to)
And Japan doesn't have "gated" communities...