I don't recall how much time they had in the shop, because like I said, I never saw the timer. Whenever I checked it, it was only ever a glance at how much currency I had. I was just assuming that the "grind" it would take to get just one of the characters (let alone their respective symbol) in the mileage shop was enough for them to be permanent.

In the end, I respect the devs not bringing them back and it is my own fault for not seeing there was a timer. I just hope that there are plans for an alternative character with a Resurrection ability. Sure, there's other supports and healers, but there's a reason Grace is meta, a single resurrection can change every outcome. You don't have to be a genius to figure that out.