I recently just got Rena (Tiger P) and she so much cuter than her kitty lingerie than her suppose "better" older sister, Katty (Tiger I). It's too bad this game doesn't have a proper gallery/library mode, can't view them without a bunch of crap on the screen.
Thanks for those, I haven't had any luck with 5 star girls aside from Pershing and the monthly 5star who I got one that didn't even have any story yet.