The pretty html version (with many images) is at

  http://www.usagi.org/doi/events/asuka/20100830.html

Event     AGE AGE IDOL MIX! Vol.4
Location  Ebisu Live Gate
Date      2010.08.30
Time      18:15 - 21:55
Cost      3500 yen
Guests    Maru Maru Gakuen Housoubu
          Itou Asuka
          many others 

The AGE AGE IDOL MIX! event was a minor idol event, but the
Maru Maru Gakuen Housoubu girls were a guest.
I arrived at around 20:00, as I knew the starting time of the
Maru Gaku stage. There were over 30 people in the crowd,
and luckily the stage floor was completely non-smoking.

The Maru Maru Gakuen Housoubu stage started at 20:20, and lasted
for around 10 minutes. This was the first event that all ten girls
appeared together.

Everyone came out onto the stage and lined up across the stage.
The stage was just big enough to hold ten girls standing close together.
All of the girls were wearing their white, non-matching outfits.

They quickly introduced themselves and sang their first song,
"Ginga Senpuu Braiger". There only five wireless mikes and the
girls that sang were Saori, Shiraishi Miki, Nao, Kana, Megumi.
They all danced and moved around the entire stage.

After the song, they made a couple anouncements about their future
events, and got ready to sing their second song. But they announced
that it was Megumi's birthday just two days ago.
Everyone sang happy birthday, and in the middle of the song Itou Asuka
(the producer of the group) brought out a little cake.

After this little interruption, they sang their second and last song,
"Seijuu Sentai Gingaman". For this song they rotated the mikes.
Saori, Shiraishi Miki, Nao, Kana, and Kanako sang the first half,
and the other girls sang the second half.

After the event ended, the Maru Maru Gakuen Housobu girls sold some goods.
They sold black T-shirts and photos.
The photos of the individual girls were 100 yen each.
There were 5 or 6 different photos of each girl. 

Photos and videos not allowed of the stage (talk and songs).
But they allowed photos during the goods selling.
It was VERY dark (around ISO1600, F2.0, 1/15). 

--
The larger images are at http://photos.usagi.org/asuka/20100830/
It was very dark, so the images are not very good.  Many are shakey.

--
Hitoshi Doi
                         " this space for rent "
http://www.usagi.org/doi/                                    doi@usagi.org