I finished my first playthrough, and I want to get the True Ending on my second playthrough. Of course I will play it on Normal. I managed to get the Decay Amulets and the Costumes and Accessories.
Just have a few questions.
1. I'm playing on Normal and I want to get the True Ending. Is it really necessary to get those Sales State Changes such as Keep, Break, and Revival? Can I still managed to get the True Ending on Normal without those? I heard getting those Sales State Changes are kind of tedious.
2. I think the Guide says to concentrate in one area at a time for increasing the number of fans. For certain weeks, the Guide recommends doing a Paid Promotion + Lesson. However, what if the Paid Promotion doesn't appear in that area you are trying to work on?
3. If I managed to get in the Top 20 on Week 6, will I not be able to do those promotions that appear if you are in the Top 50? Here is what I mean http://imas2.wota.info/idol-specific-communication/kisaragi-chihaya
4. The Guide also says to hire Reporters. However, what if the reporter doesn't appear in the Area I'm working on? Should I use up one Week in order to get the Reporter that appears in the other area?
5. Week 6 and Week 14 are your releases for the 1st and 2nd songs. The Guide says do a National Audition in the weeks of your songs release. But if you are suppose to work on one area at a time, then what is the point of a National Audition when a Normal Audion increases the Fans even more in the area you are working on. I apologize if I don't understand the mechanics behind this.
1) No, it's not necessary. Normal mode is really easy once you know how to do it and how to get decent scores (which you should if you have the decay charms and raise the stats correctly). Hyper mode is a different story though, for an S rank hyper mode you'll usually need at least one modifier (i go for a super break on the last song).
2) Personally i focus on 2 areas and just do a paid promotion whenever it is available in one of these areas. Generally you don't have to follow a guide on a week to week basis, it's hardly possible anyway since there are a bunch of randomised elements.
3) Yes, you will miss out on the lower tier promotions that way. But the higher tier promotions give better rewards anyway. If you want to see them all for the sake of seeing them i guess it will be hard to get the true end (since you must do a promotion on almost every week if you want to see all for all 3 idols).
4) Reporters are a nice bonus, but they are by no means necessary in normal mode. Get them if you can, but don't go too far out of your way to get them unless you have trouble (the voltage boosting reporter can be helpful for festivals)
5) The number of sales of a new song depends on the number of fans and the color of the smilie in an area. The smilie will translate into a multiplier (something like 0.2 for the worst and 0.9 for the best, but i don't know the numbers, you can just look it up if you are interested in the details). The national audition rises the smilie in all areas and thus increases your sales by quite a bit since the multiplier of all areas gets better. The impact gets much greater later on since you still have a lot of fans in "abandoned"/completed areas and getting those fans to actually buy your CD is a good idea

So the idea behind the national audition is not to increase the number of fans in your current area, but to increase the sales of the song you are about to release.
By the way: You will have a lot of time left after completing all areas. Iirc (it's been quite some time since i played it the last time) i got about 10 weeks weeks or so in the end to do whatever i want.