Episode 7 by Anime.fin is out. If you need a link, let me know.
EDIT:
Happiness! I just finished watching episode 7 and can't wait for episode 8.
**Episode 7 Spoilers**
I am pretty sure now that Nana is the Director's (glasses guy) daughter that he supposedly killed. Nana's relationship with that assassin guy is kind of weird and hard to believe (first time I've said that in this series). I didn't feel like much happened in this episode besides introducing Nana into the household, but it was a cute Nana episode. I don't really like her pyscho personality, however. From looking at the previews, they might all be getting along by the next episode. I wonder how they will handle it with both of them in the same house.
**End Spoilers**
I want episode 8! *Sigh*