White knight chronicles : Origins

[wolfheze]

I've been playing WKC:O for a while now and I notice that Arietta hair is changed during missions, and I think it's bcz I use the "data install" option. How do I revert it? Where can I find the file and delete it?
Im Playing from Android device

If u ask why bother, I like the twin tail style it make her more cute (for me)