For the benefit of those who can't read Japanese, here's a rough summary of what the newest Dengeki iMAS2 story revealed:
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On Shops-Meet Stylist Yasuko
A famous stylist, she's responsible for the clothes and accessories chain boutique "LUCKY RABBIT" that's available in every area. Incidentally, whenever Lucky Rabbit is holding a sale, the shop employee will inform you via email.
-If you put together a collection of "maniac-ish" costumes, and clear certain game conditions, you'll also be able to visit a second shop, "BK MANIAC", run by unlicensed/unregistered/underground clothes designer BK.
-Visiting a shop expends 1 time unit from your schedule that week. You won't know what's for sale in the shop(s) unless you go in (I guess this means different items appear randomly), so make sure you've got a bunch of dough to drop whenever you go visit.
On Costume/Accessories Coordination-You can edit your unit's performance outfit every week after planning your schedule.
-Up to 5 coordinated outfits can be saved at any point in time.
-The coloured star at the top-right-hand corner of the item's description tells you which stat this particularly costume/accessory chiefly boosts:
Red=Vocal
Blue=Dance
Yellow=Visual
*Note: One of the screenshots show a Luxury costume that's been assigned a red-star stat-boost icon (boosts Vocal stat)... which is really weird seems Luxury is supposed to correspond to Dance.
This is the one I'm talking about (Pink Diamond 765):
http://news.dengeki.com/elem/000/000/335/335295/img.htmlAlthough in the screenshot, Pink Diamond 765 has a blue star (Dance):
http://news.dengeki.com/elem/000/000/335/335319/img.html-Amulets do not boost your stats or appear as part of your costume. Instead, they have other effects that come into play during your unit's stage performances. For instance:
Hiyoko Daruma no Omamori (Chick Daruma Amulet)
Lowers the score of ordinary Visual appeals, but makes it easier for you to gain Voltage.
http://news.dengeki.com/elem/000/000/335/335300/img.htmlNeburin-chan Omamori
Visual appeal (ordinary) score goes up.
http://news.dengeki.com/elem/000/000/335/335308/img.htmlMeeee-Queen no Omamori
Increases your Burst Appeal score. However, your rival's Voltage meter will go down less whenever you activate a Burst Appeal.
http://news.dengeki.com/elem/000/000/335/335314/img.html-Okay, at the end of the Dengeki article they talked about the different costume categories again. Vocal-kei= Floral, Dance-kei = Luxury, and Visual-kei = Starry. I guess the screenshot above must have been a bug.
-In addition to those three categories, there are special Extend costumes, which will usually be delivered via DLC but... apparently some Extend costumes can be bought from Lucky Rabbit? (Rhetorical Q from Dengeki, which means, yes, you will be able to get some Extend costumes from Lucky Rabbit).
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Oh, and this is a bit of info from a previous Dengeki Online story that I forgot to mention before:
Notice on the top-right-hand corner fo the game screen there is this circular emblem similar to the one in iMAS1? In the first game, this concentric meter displayed the stats and level of your idol unit, but in iMAS2, stats are displayed in bar-graph form.
Instead, the concentric meter in iMAS2 signifies the level of unison/mood within your idol unit. A white winged-boot in the center means your unit feels upspirited. Three elipses ("...") means they're exhausted, and so and on forth. In the original Dengeki story I read they revealed four unison statuses.