Pretty good episode.
Spoiler for episode 6:
Chieri is fucking batman. Way too cool. Also, I was right, she made Orine cry but she was trying to help. And it was really cool how she put herself in front of Orine when the guy who wrote the hate mail appeared. Always ready to protect her teammates, that's Chieri for you. I was squealing like a fangirl.
Also, Chieri told Nagisa that she's got a dream. That reminded me that her character profile in the series website also states she's got a dream that she keeps close to her heart. When she said that, Nagisa thought she was talking about the dream of them becoming AKBs together, like they promised when they were kids. But I think Chieri is talking about something totally different. I've just got that feeling, I don't know...
EDIT: if anyone is interested, episode 6 (raw) is already up on himado.in