The story in this game could be better. Some parts of it were just unnecessary considering the protag is a minor.
Still, Tatsuya is a refreshing character to play since we don't usually see openly morally grey protagonists like him in RGG games.
Combat-wise it is also really great and although the PSP limits the fighting mechanics, there are many different styles you can use so it doesn't get boring. What makes fighting even better is the OST which is a banger.
Overall, as solid as a PSP game can be.