What Is a good RPG game to play on the PSP?

I’d like to know a good RPG game to play on the
PSP. Not something with graphics like tales of
eternia or like Valkyrie Profile Lenneth. I want
ones with graphics like Final Fantasy VII Crisis
Core or like Valhalla Knights or something like
that. So to put it simply I want to know a PSP
RPG that has good graphics. So if you could
also tell me what it is about.