Anyone, please... 
Can anyone please tell me, I have some questions;
1) How can I unlock Ryugu Komachi clothes and Ritsuko?
2) How many clothes shops are there, and how to unlock those shops?
3) How can I gain the other rewards from Idol Academy?
4) Is there a way to edit the song singing in S4U mode similar to L4U ?
Thank you.
Sorry, I saw your post while eating but I forgot to reply to it. -__-;
1) You need to have good communication with her and RK everytime you speak to her (or just at week 30/40, I can't remember). I unlocked her and the RK clothes the first time without even realising it, simply by picking the most polite response everytime... will have to get back to you on what the responses are though. It's somewhere on the Japanese wiki I posted.
Once you unlock Ritsuko for quintet live, finishing that playthrough will give you the RK costume.
2) Two shops. Lucky Rabbit and BK Maniac. If you buy enough stuff from Lucky Rabbit/visit Lucky Rabbit enough in one playthrough (not sure which) you will unlock BK Maniac in the upper center area. It's two tabs to the left of the capital/Lucky Rabbit area.
3) Have 100,000 (10万) fans in one area to unlock the 歌姫・歌王子 Fes. Clear that to unlock the the special award for that area. There are 5 special awards (Snow White, Forest Green, etc) meaning there isn't one for 首都/capital.
However, if you get 100,000 fans in the capital area there is also a 歌姫 Fes there. Clearing that will give you the chance to buy the Namkyara Dancho omamori (Namco Character leader amulet) for 50,000yen.
Is that what you mean by "IA special rewards"?
4) I'm producer rank 4 and I still don't have it, so I'm guessing, no.
You cannot
So, just wondering...
With the dump -> Danketsu strategy, what's the general breakdown of your scores (as in total score, points from combo bonus, points from burst appeal)? It'd be great if these numbers would assume a full Perfect combo, but eh...
Also, numbers for Revival? I assume it continues the same 1.00 -> 0.75 -> 0.50 -> 0.25 -> 0.00 trend.
I never recorded my auditions so I don't know the exact breakdown, but my total score from week 30 onwards is about 40~45,000. End game is 55,000.
Using that strategy I described, my Dance appeal gave me like 170 per appeal, and I use Dance to bump up my Visual to about 1.30, which gives me like 350 per appeal. During Burst the Vocal Burst with 3.00x is 1000~1200, can't remember.
Just make sure you hold your second burst until near the end of the song and you should get a high score easily. On my first playthrough there were times I couldn't clear the Lv10 National Auditions. But that was because I didn't use the Burst Appeal at the end to "extend" my score.
Don't know what the revival numbers are, but I've had it happened twice now. And each time it's always been roughly 1.00, 0.75, 0.50, 0.25.