I recommend Persona 4 Golden. It's a Dungeon Crawler Turn Based Role Playing Game, I'm sure you will love it.
I also recommend Danganronpa but that isn't an RPG.
In fact I have no idea of what I'm doing here, I don't even own a Vita.
"I've Underestimated the Horse Power from Mario Kart 8, I'll Never Doubt the WiiU's Engine Again"