Idola Phantasy Star Saga

I don't know what to say at all. I can't find something to lure me into the game. The story is good and has good VA but almost 10 gb of what mostly voice assets is kinda overwhelming which makes me wonder is the story is very long (if not, I will asked myself what in the storage are you using the 10 gb for). The graphics are all simple like other ACGN which is not over 3gb like Touhou Lost World. which is remember that it's not even over 1gb but that's about half a year ago.