Better birthday
Alright first, I'm playing this on my 3ds. I don't know if that makes a difference, and I don't see why it would but still.
Instead of changing your system date, and causing something to perhaps mess up, or whatever, just change your heros birthday to the date on which you are playing. That way you wont screw up anything else. And yes, you are able to change it as many times as you wish. (at least I've been able too)
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