Er, I'll tell you a basic thing about it. It has one of the biggest character developments in games not only that, as you play along you feel like you are really there, there are characters you really fall for.. love and trust and that it makes you want to cry. BUUUUT I can't say anymore than that or it will ruin it.
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If you have a 3ds I suggest getting it for that, its quite the fun game ;3