Spoilers : Main Story did I miss something?

Question

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So I went through 4 worlds (reanimating 4 crystals in each) and when I was in the 5th I knew that Airy was lying. It was right at the beginning of chapter 8. So I tried to just destroy the wind crystal and it worked. So I went through chapter 8 in like 2 minutes. Though I wonder, how long can you keep reanimating crystals before the main story leads you to destroy one? What happens if you destroy a crystal in the first world?

Answer 1

Main Story Line Spoilers Below

Your first question:

Though I wonder, how long can you keep reanimating crystals before the main story leads you to destroy one?
Chapter 8 is the last chapter in the game. In order to get the true ending, you actually won't be destroying any crystals. You will enter one final world at the end of chapter 8. In that world, you will not awaken or destroy any crystals.

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Your second Question:

What happens if you destroy a crystal in the first world?
You actually cannot destroy crystals in the first world. You are not allowed the opportunity. You can destroy crystals starting in chapter 5 (world 2). The place that makes the most sense (IMO) to destroy a crystal is the Earth Crystal in chapter 6 because the false ending references events that do not happen until chapter 6.